Wolf all you can do is move on with your life. Do what you want to do and spend time with the people that you enjoy being with.
We seem to be in the same boat. I don't get it either. My W just walked away and left her responsibilities behind. I thought we had a good marriage overall. Laughed a lot together and enjoyed time with each other. But something changed...maybe it was depression or her dad dying/being sick or maybe she really just doesn't want to be with me. But as of now, she's been clear she doesn't want this life so I need to move on. And so do you.
Maybe they'll regret it down the road. Maybe they'll want to reconcile. Maybe both of us will have found someone better suited for us by then and we won't be interested in reconciling.
I'm often shocked that I'm in this position. Came out of nowhere. But...time to man up. If she doens't want to be with me then good riddance to her. I'll be ok. So will you.
H 37 W 31 S 2
T: 7 M: 4
BD 12/18 Separated 2/19 Living back together 04/06/2019 W Moved out again 07/15/2019
