Hello mnnc: I see this is your first post here on PC. So... welcome to PsychCentral… from the Skeezyks!

I hope you find the time you spend here to be of benefit.
I'm so sorry your marriage has come to such a sad end.

Realistically, I don't have any idea what specifically is going on in your wife's mind.

But your post brings back some extremely sad & difficult memories for me.

I'm an old man at this point.

But many years ago I went through something similar... only in reverse. That's about as much as I'm willing to write about it here. And I don't know as there's much of anything further I could write that would be of any real help.

But, should you want to, I would be willing to correspond further with regard to this by Personal Message, here on PC.
PsychCentral is a great place to get information as well as support for mental health issues. There are many knowledgeable & caring members here. The more you post, & reply to other members’ posts, the more a part of the community you will become. Plus there are social groups you can join & chat rooms where you’ll be able to connect with other PC members in real time (once your first 5 posts have been reviewed & approved.) Lots of great stuff! So please keep posting!