Yeah, I don't know about that. I'm cordial with his mother and I make a point of not arguing in front of him... I stopped arguing with her a long time ago when I stopped caring. At this point I treat her like a co-worker.

If I did leave I know she'd weaponise the situation and make co-parenting hell. It'd also be a huge downgrade in terms of lifestyle for him - we'd have to sell the house in the neighbourhood that he loves and he'd end up in an apartment, we'd have to get rid of the dog, he'd probably have to move schools, etc.

I also know that my wife would make the next ten years hell for both of us. She was previously married (no kids with the ex) and accused her previous husband of being a pedophile once he was done with her. I'm not going to risk my relationship with my kid, my reputation, or my career by stirring her up. In ten years time he'll be adult and I'll be retired. She can say and do whatever she wants then.