These are absolutely heartbreaking. 

We already know that you have to be pretty stupid to cheat on your spouse. But this is just further proof that they usually aren't the brightest people. 

This chick got what was coming to her, and more than she bargained for, when she cheated on her boyfriend with his brother.

These are pretty brutal. 

A look inside the minds of cheaters.

This guy was obviously less than thrilled when he discovered that his gold-digging girlfriend was cheating on him with multiple men after he funded her entire trip to Coachella. So he took to Facebook to destroy her on her own Facebook profile.