Coping with Bi-Polar WAW

[TrentC]

BTW...she moved out 3 weeks ago, so she's not living with me anymore.

Then her options are give him up, or you file for divorce.

And go dark to her; you don't interact with her at all except in the interest of your son. She should have uninterrupted time with her son (with the condition that OM isn't around him) to allow you to have time to yourself.

As for letting her have a relationship with S7, she is the one leaving you. She is the one pulling your family apart. You don't owe her any favors.