When I went to the work psychologist for help with my A, he gave me a checklist of things that he feels help determine if a person is an alcoholic. There were five questions, unfortunately I only remember three right now, I'll try to find the other two tomorrow.
1. Is drinking affecting his relationships?
2. Is drinking affecting his work?
3. Has drinking caused trouble with the police?
At any rate, judging by the things you have written, it looks to me as if alcohol is causing him bigger problems than it causes the average person. Sometimes it's hard to tell if a person's "drinking problem" has crossed the line into addiction, but if someone has a "drinking problem" that won't go away, they're certainly heading in the wrong direction.