I'm in love with a married woman,what to do?

I met this beautiful girl back in college. It started as an occasional conversation every now and then. Slowly but surely we built a affection. She lost her new born at the time. Her husband is in jail, but she says she wants to wait for him. What do i do? I love this woman its become something I can't ignore. It seems like she doesn't like me hearing that she says she wants to wait for him. What confuses me is that she looks at me with this look that is undeniable that she has strong feelings for me. In this situation, what are my options? We have stopped talking to eachother but some how we always seem to find a way to get together again. I'm just extremely confussed and can't come up with a solution. Should I just walk away and forget her? Or should I keep fighting for her?