Im sleeping with someones husband

I am having an affair with a married man. I never thought I'd start to like him, but now I find myself thinking about him and wanting to be with him. He got married a few months after out affair started, Why do I stay in this one sided relationship, Is my selfesteem really this low. I know I deserve better, but the way I feel when I'm around him, I've never felt like this before. I have an ex boyfriend that is still in the picture, And comparing my feelings for the two, I definetly feel like I'm getting over the ex. Is this what Lust is, and would I still have these feelings if he was totally avaiable to me. The sex is not good. He's completly selfish!! but even after all that the way I feel when i'm around him.....What is that? And How do I move on...Its not good for me, I don't want to wind up with a broken heart...Again.......Any advice ...or similar stories? Please share!!
Category Dirty Little Secret