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What led to Leah and Corey's 'Teen Mom 2' split? Infidelity ... and hot dogs!

For such a tumultuous season, "Teen Mom 2" sure went out with a whimper last night.After Jenelle and Kailyn's reunion "checkup" with Dr. Drew Pinsky last week, it was Leah and Chelsea's turn on the couch.So much has changed in the girls' lives since this show was taped last year that tonight it often seemed like we were re-watching the last season of "Lost." Fortunately, we did learn some jui
Leah Messer and baby Aleeah on MTV's \"Teen Mom 2\"
Leah Messer and baby Aleeah on MTV's \"Teen Mom 2\"Today

For such a tumultuous season, "Teen Mom 2" sure went out with a whimper last night.

After Jenelle and Kailyn's reunion "checkup" with Dr. Drew Pinsky last week, it was Leah and Chelsea's turn on the couch.

So much has changed in the girls' lives since this show was taped last year that tonight it often seemed like we were re-watching the last season of "Lost." Fortunately, we did learn some juicy new tidbits -- like the real reason for the breakdown in Leah and Corey's marriage....

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Beef hot dogs.

Sure, other factors -- cheating, lack of intimacy -- contributed to their divorce, but obviously Corey had checked out of this marriage when he came home with beef hot dogs instead of "pork and chicken." (Is this a West Virginia specialty?) "You said I hurt your feelings," said Corey. Well, obviously! He couldn't have hurt her more than if he'd hooked up with Robbie himself.

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Another reveal? Leah not only cheated with her ex-boyfriend a week before her wedding, but she hooked up with him at her bachelorette party! We're not here to judge -- after all, Robbie could've jumped out of a cake with his arms full of pork and chicken hot dogs, and who could resist that?

Dr. Drew, almost as upset as Leah about the couple's breakup, finally persuaded Corey to go to therapy with Leah, and they've since reconciled ... in Dr. Drew's dreams! Leah is now engaged to marry someone else, who will probably insist on a joint bachelor-bachelorette party before their wedding.

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The only revelation in Chelsea's "checkup" was Dr. Drew's baffling man-crush on Adam, Chelsea's immature baby daddy. "He's actually changed," the doctor insisted about the notoriously abusive texter who once referred to their daughter Aubree as a "mistake."

The Adam-smitten doctor even encouraged the couple to express their love on national TV. Since we're not members of the Adam Fan Club (Drew Pinsky, president), and know that Chelsea is now reportedly involved in an MTV crossover romance with a Caged MMA fighter, we didn't join the audience's collective "awww."

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Did Chelsea get her GED? Will she and Adam continue this unhealthy attract-and-repel relationship? Will Leah's mom start forcing depo shots on all the teenage girls of Kanawha County? Guess we'll have to wait until the next season of Teen Mom 2 to find out!

What did you think of last night's final finale? Where do you stand on beef vs. pork-and-chicken hot dogs? Tell us on our Facebook page.

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