Ever been cheated on? What did the other party say? What did you do?

Yes. I called her and she told me, "Before you say anything, I need to tell you something. I cheated on you tonight. I've been talking to this guy for a while and I really like him, so I want to break up. I'm sorry, I didn't plan for it, but I hope we can still be friends." So I said "Ha! That works out great! I cheated on [i]you[/i] tonight! I'm at my ex's right now! I was calling to tell you the same thing, that I wanted to break up! Isn't that funny?"

...She did not think it was funny. And we did not remain friends.