Thanks guys. I've really learned so much here.
As time went on he rarely paid any attention to my feelings. Everything was always about him and how the world **** on him. A couple of days after the "breakup" he started texting me like it never happened, like if he ignored it we'd just go back to what we were.
So many stories here of people with A partners were JUST LIKE HIM. Minus the drunkenness. But otherwise identical. I feel sort of sad but mostly relieved to be out of the drama. Drama is this guy's middle name even when the AGF is sober. It was flattering for a while to feel so "needed" but it turned into being used.