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"Teen Mom 2" served up two scoops of rocky road with back-to-back new episodes Monday night.

Two violent assaults, two arrests, two trips to the wedding chapel … the docu-series really delivered double the dramz this week. Plus, Prince Charming himself, Kieffer Delp, made his second comeback.

To be fair, Kieffah really did come off as the good guy for possibly the first time ever. Then again, even Jenelle's Ed Hardy seat covers looked good when compared to Gary Head.

At first, it's nothing but romance and puppies for Gary and Jenelle. (Literally: He bought her a puppy.)

But after a whirlwind engagement, the explosive Marine first broke down Jenelle's front door, and hours later, was arrested for assaulting her.

Jenelle was arrested too, because when the cops arrived, Gary played a game of show-and-tell with her marijuana stash, pipe and Klonopin.

This time, her mom bailed her out of jail and let her stay at her house. Can't imagine Barbara was too pleased when she found out K.Delp crossed her threshold, however.

But hey, he did drop some wisdom when Jenelle said it was over with Gary.

"To keep it real wit ya, once he punched you in the face and you was done," Kieffer reminded her. (Did Babs know about this? And if so, why'd she let him babysit Jace?)

"We've been to the point where the police didn't want us together too," he added about the restraining order issued against Gary, "And we was chillin'."

But Kieffer's true jaw-dropper was this: "You can definitely find somebody better than Gary." Pause. "Or me."

Unlike Jenelle (this time), Leah's short engagement was much less tumultuous (only one breakup during Indecision 2012) and concluded with nuptials in the courthouse chapel. The couple are still planning a grand summer wedding, but in order to get the home loan they wanted, they needed to seal the deal.

There's only one negative: "In our wedding pictures it's going to look like I married a teenager with them braces on," Jeremy joked en route to picking up their rings. (Dude, she's 20. You almost did marry a teenager.)

Leah's ex, Corey, wasn't exactly overjoyed to hear the news -- especially when Leah asked him to up his childhood support. And although they made a verbal agreement for an extra $100 a month, the court recalculated it to $800 based on his salary. Ouch! Well, twins are expensive, y'all.

Kailyn and Javi also considered tying the knot for practical reasons: He's hoping to join the Air Force, and they will only provide housing and other benefits to married couples. But although they pay a visit to Vegas' world-famous Little White Wedding Chapel (Britney Spears was married there, and that worked out so well for her!), they decide to postpone. And as Kailyn pointed out, "I'm not marrying you unless I have a ring. We're not even engaged yet!"

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Beauty-school student Chelsea's having a rough time of it lately, and not just because of her terrifying purple hair and makeup. (Maybe cosmetics class is next semester?) Baby-daddy Adam has a new girlfriend and a newfound interest in spending time with his daughter. Although he obliquely threatens to take her to court, Chelsea's lawyer assures her that he won't fare that well in a battle for even part-time custody.

Cue Chels' typical overreaction: "I don't know what it feels like to be happy," she cries to her dad. (Dierks Bentley would beg to differ.) 

Next week: Chelsea considers taking a leave of absence from school because of all the "stress," Corey's upset about paying so much child support, Javi passes his Air Force entrance exam, and Kieffer and Gary have a showdown outside the courthouse.

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Kailyn Lowry.

"Teen Mom 2" star Kailyn Lowry is pregnant again, her sister-in-law told In Touch Weekly. 

The 21-year-old is said to be expecting her second child, first with husband Javi  Marroquin.

The news comes just a day after the reality star was shown assaulting then-boyfriend Marroquin in a controversial episode of the MTV docu-series. The couple reconciled shortly afterward and married in September 2012.

According to Lidia Marroquin, the 20-year-old military man's sister, "They're overjoyed! When Kailyn told Javi, he cried."

Although the baby, due this fall, wasn't planned, "they weren't preventing it, either," a friend of the reality star told the magazine.

Kailyn's co-star, Leah Calvert, 20, recently gave birth to her third daughter. She and her second husband, Jeremy, welcomed Adalynn on Feb. 4.

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"Teen Mom 2" is almost running out of places to plug in PSAs! Teen pregnancy prevention, STD education, drug addiction, DUIs, child endangerment, anger management and domestic violence -- the MTV docu-series really covers it all.

In this week's episode, viewers glimpsed into the diaper bag of humanity as Kailyn got violent with boyfriend Javi after a dispute over their dogs. In addition to the shove we see on film, she also apparently grabbed his face and gave it a vicious shake.

He walked out only to return later, when she promised to take anger management classes. She also suggested she take boxing classes, presumably so that something besides the man in her life can serve as a punching bag.

Jenelle also got back together with her boyfriend, Gary. He's so responsible and caring (spoiler alert: not for long) that he picked up Jace when Jenelle was a babysitting no-show.

Jenelle had agreed to stay at her mom's house overnight so she could start looking after Jace when Barbara left for work at 7 a.m. Instead, she took off to party with her friends and never returned. When Babs complained about her irresponsibility, Jenelle told her to shut up and "be original." Mom did her best, saying her "pot head" daughter has gotten fat because she's smoking so much weed.

Touché!

Like Jenelle, Chelsea's baby daddy A-D-A-M has delusions about someday getting legal custody of his daughter. With two DUIs on his record, he sent a legalese letter to Chelsea, whose dad sneered that it was written not by Adam but his parents or "somebody who knows how to type."

On a break from beauty school, Chelsea met up with "Teen Mom" wannabe Megan, whose son is almost 1, and revealed her "retarded" hookup with her ex. Megan in turn told her that Adam has a new girlfriend but comforts Chelsea by saying she has a "weird face." Whew!

Just weeks after choosing Jeremy over her own ex, Leah was planning their wedding in Myrtle Beach. But there's a snag: The couple, who've decided to buy a house together, learned that they'll have a harder time getting a loan if they're not married. So they decide to tie the knot at the courthouse, but still celebrate their union with a wedding later as planned.

Maybe by then Leah's daughter Ali will be walking! At her annual assessment, her physical therapists say it's a "realistic goal," even though she is still not using her calf muscles. They also praised her "compensation" for her weak hands, asserted that her cognitive skills are at an age level or above, and compliment Leah's mothering. Bravo!

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On the latest episode of "Teen Mom 2," Jenelle Evans continued doing her part to cement reality TV's bad reputation.

Reunited with Kieffer, the bad-boy ex-con who used to live in her car, the revolving-door rehabber is smoking pot again, rarely seeing her son and she's ready to get breast implants.

Even Kieffah, the self-proclaimed "biggest fan" of her breasts, is against the idea: "I was very attached to them so the new ones better be just as cool," he purrs.

Romeo and Juliet are also launching exciting new careers. Jenelle is selling online advertising, and Kieffer is going to start hand-carving wooden tobacco pipes. All he needs are tools and exotic wood!

He might have a customer in Jo's girlfriend Vee, whose shameless pot smoking and drinking infuriates his baby mama. Kailyn is even more upset that Jo has missed his visitation with their son since moving to Jersey. Yes, the Teen Dad has finally flown the nest and gotten his very first apartment. (These kids grow up so fast!)

Chelsea is going to have find a new place to live too. Correction: Her dad is going to have to find her a new place to live, because she's a full-time student and just can't deal with the fact that her landlord is kicking her out.  

At least she is going back on birth control. Resistant at first to getting another IUD, she opted to get the Morena again after her doctor explains the other options. Yes, four seasons into a docuseries about unplanned pregnancy, and Chelsea's just now learning about the other birth control methods besides "whoops."

We thought we might have another spinoff on our hands when Leah's former fiancé, Jeremy, dropped by her baby daddy's new house. He said he just wanted to talk, but he also pointed out that he has all his stuff in his truck and "nowhere to go." "Teen Dad: Roommates" -- that's a show we want to see! And the two have a lot more in common than just being Leah's exes and doppelgangers: They share a passionate hatred for her original ex Robbie.

Alas, it's not to be. Leah is realizing she "made a big mistake choosing Corey over Jeremy," and will be asking him to come back.

Hers isn't the only revolving door: Next week, Jenelle kicks out Kieffer and asks Gary to return, while Kailyn invites Javi, her future husband, to move in with her and Isaac. It's all unicorns and rainbows from here on out, folks!

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All hail the return of Jenelle Evans' knight in shining armor! Kieffer Delp has finally returned from the battlefield (aka jail). Although he's actually wearing uncomfortably tight acid-washed jeans instead of chain mail and he's riding a bus (ticket paid for by Jenelle) instead of a noble steed, he's still every inch the hero.

That's how the story goes in the fairy tale crafted by Jenelle, anyway. Now that she's completed the terms of her probation, she is finally legally able to see the dude whose misdeeds helped to send her to jail.

Freed also from her weekly drug tests, Jenelle and Kieffer can share their favorite hobby: smoking pot.

Stop judging: "Weed is just a plant," Jenelle reminds her concerned mom. "It's not like I'm addicted to cocaine..."  (-- from the coca plant.) "Or heroin..." (-- from the poppy plant.) "Or meth..." (-- OK, you win, Jenelle.)

"You better put the antenners on with Kieffah and make sure he doesn't suck you dry," warns Babs, who is blind to the charms of Jenelle's prince. (Props to K.Delp for getting his GED in prison. Maybe Chelsea would've applied herself if she were behind bars?)

Haters will hate, but we will celebrate these two star-crossed lovers finally enjoying their happy ending. What could possibly go wrong?

Not much to say about Kieffer's fellow GED-holder. We'll let Chelsea speak for herself:

"I finally got my period. Woo-hoo, not pregnant!"

With that false alarm over, Chelsea enthusiastically accepts her bad-boy baby daddy's invitation to get together. Predictably (to everyone but Chelsea), he bails at the last minute because he's "too tired" -- but somehow summons the energy to go out to a movie with other friends. At least he posted his plans on Facebook so his baby mama was less oblivious than usual. When she chastises him for disappointing his daughter, he sweetly texts,  "I'm not ditching Aubree I'm ditching u." Aw.

Meanwhile, Kailyn, after three weeks apart, finally drops off her son at baby daddy Jo's. While their hand-off is virtually silent, the "Teen Mom" has plenty of fauxversations with "friends" to elaborate on the dramz. We also learn that she's averaging only two classes a semester, so there's a chance Chelsea will be running her own salon by the time Kailyn graduates from community college.

Over in West Virginia, Leah's backside is the center of a love triangle between her fiancé and ex-husband.

"If I was him I would've already left my a--," she says about Jeremy's endless patience, while her baby daddy asks, "Why is it I can't get over your little a--?"

And because "Corey is the person who makes my family complete" (and not because he has two bathtubs in his fancy new house), she lets Jeremy walk out the door. With his engagement ring.

We'd congratulate Leah on finally "making up her damn mind" -- except that she now shares a last name, and a new baby, with Jeremy.

The End.

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After the "Teen Mom 2" third-season reunion, all we can say is: Oh, Jeremy, you poor sap.

Leah's unfortunate fiance (now husband) had to sit there on Dr. Drew Pinsky's couch while his baby mama flat-out professed her love for her ex-husband, Corey. That's not all: She'd rather get back together with Corey -- if he fully committed to their family -- than stay with her devoted new man.

Dr. Drew slapped on another insult by soliciting a show of hands from the audience, who almost unanimously voted for Corey.

Corey won't commit, though, but he does blame the failure of their marriage on the old "trailer and truck" dispute, not Leah's revelation that she cheated on him a week before their wedding.  

It seems all Leah wants is a family and more babies, so if Corey's out then Jeremy's in -- evidently, seeing as how she married him.

The special was apparently taped between Leah's miscarriage and third pregnancy (with Jeremy). When she says she's desperate to have another baby, Dr. Drew, who has triplets of his own, smacks her down: "An adult wouldn't think that way!"

Huh. "Thinking" has never been our go-to verb when discussing the Teen Moms.

Moving on, some disturbing facts came out of Jenelle's session:

The Ke$ha concert wasn't that great.

Per Dr. Drew, Jenelle probably would have passed her drug test if she hadn't attempted to "adulterate" it. So the lesson here is just make sure you don't smoke out two days before your weekly urine test? (We suspect that was Jenelle's takeaway.)

Kieffer is back in jail, and Jenelle has a new boyfriend, a Marine whom Barbara loves.

"I love Gary -- he's very respectable," Bab enthuses about the habitual drug user who would later plead guilty to assaulting her daughter. "He was brought up with manners and wants Jenelle to go to church."

Maybe Gary isn't exactly a model citizen, but he sure seems that way compared to Jenelle's baby daddy. Hey, even "that Koofer kid" looks good next to Andrew, who was tripped up in several lies on Dr. Drew's couch.

For instance, he hasn't seen his son because Jenelle didn't give him Babs' number and his baby mama is deliberately blocking a reunion.

Then he admitted he can't visit their home in North Carolina because there's a warrant for his arrest -- for not paying child support.

Genius!

Dr. Drew commends Jenelle on her "progress." (Hey, he's not a fortune-teller, just an addiction specialist!)

Kailyn is still fuming about Jo's girlfriend, Vee, whom she still hasn't met. Does Vee's tweeting that she asked Jo to send her a picture of his package make her untrustworthy? (Discuss among yourselves.) Did Jo send such a snapshot? ("I don't remember.")  

Could Jo and Kailyn ever get back together? Jo takes this one.

"I'm not a fortune-teller, I'm a rapper," says N.I.C.K. B.

We're not fortune tellers or rappers, but thanks to the season four preview, we already knew Chelsea and Adam hooked up again -- and that Dr. Drew was destined for disappointment when he asked whether they used birth control.  

"Please God, say yes," begs the unreasonably optimistic doc.

Chelsea's dad, Randy, drops another bombshell: Adam threatened to leave if Chelsea didn't give him money for his truck. (What the truck is with these baby daddies? The must really like to help people move.) But Adam denies that ever happened. Hmmm, whom to believe? The respected dentist or the partying four-wheeler who still lives with his parents?

That's all for this season, folks. Tune in to MTV Monday, Feb. 18 for the premiere of season four!

What did you think of the reunion special? Share your thoughts on our Facebook page.

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"Teen Mom 2" returns Feb. 18 ... with a cauldron full of hot mess.

The preview for the fourth season opens with a shocking scene of domestic violence. What's most surprising is that the attacker is Kailyn Lowry, the "responsible" "Teen Mom" star, beating on her new boyfriend (now husband) Javi.

But Javi isn't Kailyn's only casualty. After complaining that her ex, Jo, "put his hands on" her, she punches her baby daddy in the face.

But wait, there's more! Jenelle, who like original "Teen Mom" Amber Portwood has been arrested for violent confrontations, is seen tossing a suitcase at who appears to be new BF Gary Head's face and shoving him. She in turn complains, "I have bruises all over my body."

In more terrible news, Jenelle reunites with her bad-boy ex Kieffer, who places an emergency call because she's "high on morphine."

Chelsea predictably hooks up again with baby daddy Adam -- without using birth control. Sigh. Is this before or after he serves her court papers and shows off his new girlfriend?  

Meanwhile, Leah continues to vacillate between her devoted fiancé, Jeremy, and her ex-husband, Corey.

There is one bright spot amid all this violence, misery and heartbreak: Leah and Corey's daughter, Ali, who suffers from a neurological disorder, walks on her own for the first time! Tears.

"Teen Mom 2" returns Monday, Feb. 18 at 10 p.m. on MTV. Will you watch? Tell us on our Facebook page!

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