I will definitely look into Salvation Army though.
NO
Let him look into Salvation Army, not you. This is HIS RESPONSIBILITY, HIS ADDICTION.
Enabling is described as doing for someone something they can do for themselves. He is an adult, albeit and an A but still an adult and can do this for himself.
I am sorry you MIL is out of the picture, but because you have this condition, your DR can prescribe 'help' for you, should he go to rehab, so that you are not alone all the time.
Instead, of you looking into Salvation Army, you come here, and you search for AlAnon meetings on line for YOU.
Sweetie, you
didn't
CAUSE this
can't
CONTROL this
can't
CURE this.
It is all on HIM.
Now, please keep posting and let us know how you are doing as we do care very much.
Love and hugs,