Jesse James
He was still married to Sandra Bullock, but numerous women admitted to having indiscretions with James in 2010. Not long after all of these revelations, the couple split.

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Hank Baskett
Baskett cheated on his pregnant wife, Kendra Wilkinson, although they co-starred on television. To put it plainly, everyone was surprised. Baskett attempted to explain the issue by referring to a time when he went to the restroom and two transgender women were having an affair and tried to entice him to join them. The couple has since reconciled and moved on, continuing together.