All I can tell you is how it was for me.
I have a long history of taking both the geographical cure and the romantic cure. In other words, when I was either a) facing too many consequences or b) backed into a corner and expected to deal with those consequences, I'd either leave the state or change romantic partners. And I use the word "romantic" lightly. We don't have relationships; we take hostages.
Bottom line: neither maneuver worked. Eventually, I had to face myself.
I'm sorry you're suffering because of his alcoholism. Al-anon is the best thing you can do for yourself. Also, I'm in grad school, too, and I know how difficult it can be to focus when those we love are living in chaos. You have my prayers.
Peace & Love,
Sugah