MissAC, giving you a warm welcome to SR! You've gotten such good advice and thoughts from others already, and I don't have a lot to add. This is such a caring, helpful community, as you can see.
I'd suggest that you spend as much time here as you can reading, and don't miss the stickied threads at the top of the page. There's a lot of info about alcoholism and what you can and can't do about it, which will help you make decisions going forward. I think you'll learn a lot here as well as see what happens as the A progresses in his/her addiction.
As others have said, you seem to have a pretty healthy response to the situation, and that puts you miles ahead of where a lot of us were when we first came here. You're wise to say you can't do this to yourself any more.
Wishing you strength and clarity.