If I had any clue my AH was an alcoholic, or going to be, I would not have married him. I would have at the very least postponed any wedding until there was a significant period of sobriety.
I said this based on my experience. I had no inkling drinking was going to be a problem in my marriage. I had an alcoholic friend and from that experience I knew I could not knowingly marry one.
It's much easier to make this tough choice when you are not married and there are no children.
Based on what I've described, does my fiance sound like he is an alcoholic?
Based on what you've described, you have a problem with his drinking, and have discussed it twice, with consequences, and he still drinks heavily. You are concerned with this and counting empties. If I had had this clue, I wouldn't have married my husband.
I can't say whether he is an alcoholic, and how long of sobriety you should consider acceptable.
Listen to your gut, it's competing with your heart to give you fair warning.