I know just how you feel hurt and angry, I'm going through similar feelings myself at the moment, trying to be detached and laid back.
My AGF has done rehab and now in recovery and doesn't seem to want me involved. That hurts when I did no much for her.
Good on you for making some hard decisions I'm no where near that stage, she keeps dragging me back with phone calls asking me to wait for her. Part of me wants too as she appears to be in recovery part of me doesn't.
I wish I had your strength and I already attend Alon on.