They have a kid together but both only say they are together for kid. He approached me but I know it wasn't right to do it anyway but I did but he wants to keep sleeping together and if I be honest with you all I want to. We have chemistry no denying that but and sex was amazing but what do it do knowing the situation especially when we both want this but really its him having an affair. Yes karma will get me I'm sure off it but Ive been nothing but cheated on by ex that I feel nice being on the other side despite being single. What do I do?

You walk away so that you aren't the home-wrecker that helps a guy cheat on women like you.

If you don't like that guys cheat, don't help one do it.

Go out, get more confidence, and date guys that are available. This one isn't yours, and no much chemistry there is, you're still with a cheater. So you either get a guy that won't commit to you, and leaves you in limbo, or you get a guy that you KNOW is a cheater.

Sounds like a pretty horrible catch to me---I'd walk away from this entire situation if I were you.

If you feel bad about it and have had it happen to you, maybe wait until he figures out what he is going to do. Think of how she will feel if and when she finds out.