Patience is an understatement.

I think she is happy that you are talking to her while she is doing things she shouldn't. In a way it helps make her feel ok about it. She says you don't want her the way she is because she is making bad choices that is against you and your marriage and she knows it. Getting her to open up is good. Make sure you don't let her think what she is doing is ok. Offer help.....Retrouvaille, counseling, books, etc. There IS hope. She thinks there is none.