I was cheated on and the way I found out was that the idiot forwarded an e-mail from this chick he was cheating with to me. The e-mail said something about them meeting on Friday afternoon to go away for the weekend together. I dumped the guy that very day. He was a controlling, abusive jerk and I was just looking for a way to get away from him anyway. He proceeded to stalk me for the next 5 months...nice guy