answer:Welcome to Fluther! First, how do you know that he is an alcoholic? I know many people that drink, but they aren’t alcoholics. Secondly, alcohol affects people in many different ways. From the description, he is just being overly friendly and not necessarily flirtatious. If you don’t want to be in a more personal relationship with this person, the only advice I can offer is to give it more distance than you already are doing. If you still want to be his pal, then talk to him about your concerns when he hasn’t been drinking. Keep in mind that this would be unsolicited advice and may be waved away or worse. Then again, it might be a wake-up call. The main thing to understand is that you cannot change someone else’s behavior.