Let me know!

So here's the thing. I was talking to this dude(the one I went to prom with if you saw the picture) and we just broke up. He called me and told me that he cheated on me with some other chick that goes to our school. He won't tell me who it is or nothing. In a way, I'm really not mad at him because he wasn't getting it from me so he had to get it from somewhere. I was hurt at first but I know I don't need to be with him.
So all the guys do me a favor and answer this question for me: How long are you willing to wait for a girl (if you know what I mean) before you give up or would you cheat?