I wish that I had some words of wisdom, however, I do not.
You know the 3 "C's" they hold true this very moment.
There was, and there is nothing you can do, it is all up to him.
You did not and do not have the power to make him stop drinking. He is in the hands of the HP, right where he has always been, let go and move forward with your life.
Sending hugs and support your way,