The Insider.com

Though Teen Mom audiences (admit it, you watch it) have long been accustomed to some crazy drama from the show's classy bunch, last night's episode of Teen Mom 2 dropped a bombshell that managed to shock even the most hardened viewers of the MTV hit -- Leah cheated on her husband Corey just days before their seemingly perfect wedding shown on last season's finale.

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"We were fighting really bad and you weren't being affectionate at all. I was drunk ... " she tells Cory about her tryst with ex-boyfriend Robbie.

And to add insult to injury, she admits that her engagement ring was on her finger the whole time.

Ouch.

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Although she asks in the episode if he might be willing to overlook her cheating ways again (this is the second time she's cheated) and he replies that he doesn't "really know," considering the two are now divorced and she's already engaged to another man, all signs point to a resounding "no."

Some advice for Leah though just by looking at this clip above? Invest in some waterproof mascara ... PLEASE.

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In other shocking Teen Mom news, US Weekly is now reporting that original Teen Mom star Maci Bookout and long-time boyfriend Kyle King have split.

"Maci wanted something way more serious," a source tells the magazine. "She was never happy enough just being a couple. She always wanted more, more, more, whether it was a ring or another baby."

Apparently not able to handle the pressure, Kyle "broke it off."

Though Maci must be heartbroken, at least she doesn't have the possibility of five years in prison hanging over her head -- that would be you Amber Portwood.