Welcome!
Alanon will help you understand.
Alcoholism is a mind altering disease, and it is aso progressive, so he wont change unless he changes.
Right now, you are being hurt.
I suggest you focus on taking yourself out of the line of fire with as little fuss and fight as possible.
It is insanity, so asking "why?" is kind of futile.
There is no rhyme or reason to what addicts do or say, but I usually chalk it up to self loathing on their part.
Pleas keep reading and posting, and god bless