Newwwwwww supply for the ex, CB, I'm wishing newwwwww supply for the ex.
I think it seems just about invevitable, more I think of him. Once all the
sturm und drang of the divorce is settled I imagine he will be much less obnoxious. I hope my imagining will prove true!
(I think he will start ignoring you and neglecting the kids after a while, which might be a big relief. Of course, it will be all your fault when it happens.) I just loved your nonreactive responses you described in a earlier post, in one of your last confrontations ("Thank you for sharing with me..."

). I would think one day you'll be twirling the phone by its cord in sheer boredom if he calls, rather than feeling one bit of fear.
I have no crystal ball, CB, except for one thing: character and courage will out, so I KNOW you have a great deal of fulfillment in your future! I'd bet my best socks, and more. And your communication with your kids is just amazing. I hope you know how not-routine that is.
I was thinking of your dear boy getting stuck with his girlfriend's N father, and I was going to suggest: what about if you just pasted the description you gave US about how he behaved? And how you realized those were red flags? I think that could have an impact on your son...show him that he too is capable of observation. The tough thing is that when they're so young, they find it harder to accept that they can't "rescue" people as much as they'd like.
He's learned to placate an N, his father. So as soon as he connects the dots between Dad and HER Dad, the better... Also, the sooner he comes to respect her ability, responsibility, and opportunities to help herself. She will survive her N father, just as he has. And she will have to deal with it in her way, in her time, just as you all have in your family. Meanwhile, maybe they comfort each other. Just that child-of-N recognition, even if they didn't realize that's part of what drew them together.
(I understand why you feel badly that he got into the thick of it. I would too. From outside, though, it seems to have a kind of poetic meaning. Might not be all bad for him?)
hugs and a peaceful, restful, nice-to-yourself weekend ahead, I hope, and if it's not, extra ears right here!
love,
Hops