Leah Confesses To Cheating On Corey [Sneak Peek]

Back on Season 1 of "Teen Mom 2," a number of people in Leah's life--her mom, especially--thought she and Corey rushed into things. After splitting up because of Leah's cheating, the two reunited, moved in together and got hitched shortly thereafter.

Married life certainly hasn't been easy on the young couple this season. Their daughter, Ali, is developing slowly and could still have a rare disease known as skeletal dysplasia, and Corey's lack of emotional support has left Leah frustrated and feeling alone. In the below sneak peek of Tuesday's all-new episode, things appear to head down a place of no return when Corey comes home to discuss some troubling gossip he heard about his wife. Leah confesses that she cheated on him with her ex-boyfriend Robbie right before their wedding, and Corey's absolutely crushed just thinking about it. Apparently, she was wearing her engagement ring at the time of the hookup.

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