Simply put, and very to the point.Maybe this can help at least a little bit.
Number 3 has been the hardest for me.
You've had a lot going on in your life and this sure isn't going to help.
Get back to sobriety at least.
I don't condemn people for the decision to get out when it becomes too much.
That is an individual decision. So remember it was HIS choice.
Perhaps he has found peace. Best that you can hope for.
Now take it easy on yourself knowing it isn't your fault.