Hi everyone I have a question. There is this girl that I've known for about 10 years now and I really like her and have feelings for her. The only thing is she has a boyfriend and a kid. She has been seeing this guy off and on for like 6 years. She recently starts saying to me that she is going to move out because she is tired of his . He treats her badly but she is still with him. I've told her how I feel about her and it seems like we are on the same page. Am I wrong for trying to build a relationship with her? Will she ever leave him to be with me? I don't know what to do. HELP please

You need to tell her that either she goes for it or she doesn't and you can't sit around playing guessing games. You will be there when she is ready to put her money where her mouth is.
Then don't get involved. She could just be an indecisive drama queen or something close to it

After all that time in a relationship, and she is still there by the way, it could take years for her to have healed enough for another relationship, and even then, there is no guarantee it will be you as her next choice.

Chalk her up as unavailable, and get those notions out of your head. Life is to short, and your chances are slim to none.