My AH was easier to deal with when drinking. Not insanely drunk mind you, just when he was working his way to that point. Once dry, and not working his program, he got totally bizarre. Bizarre thought processes and judgments, manipulations, all of it.
I say he was dry, I really don't have any proof or indication that he was drinking before I left.
He's still insane though - based on what he says to friends and family. Dry, and insane.