Sorry, friend. I would not hold onto any hope for this relationship. She is not a good mother. Don't give her money or support. Get those children away ASAP. You may be living in the past. Don't worry about her. Take care of yourself and the children. She has made her bed. Let her lie in it. Sorry to be blunt. It must really hurt. Be careful and wise. Go to social services, police, a lawyer. Don't let her do any more damage.