Maybe all you can do is detach. Give her space and don't try to fix it. She can feel whatever she wants, but it don't make it so! If you both put your efforts into working together for whatever is best for your son, rather than concentrating on the M, that may be best. Isn't she the woman that thinks you can be best friends although she hates you and blames you for all her problems? Sounds like the makings of a friendship made in heaven, doesn't it. Let her flap her gums, say "I'm sorry you feel that way" and carry on. Concentrate on your sons welfare, maybe that's your only common ground right now.
