I’m afraid you are headed for a very painful situation if you allow yourself to become too emotionally involved with him. Right now, because he has a real girlfriend it looks like you are on the verge of becoming the “Friends With Benefits” girl and those situations rarely end up being good for anyone. If you become his FWB’s girl, then you will be an accomplice to his cheating on the real girlfriend.
But like everyone is asking, why on earth would you want to be the real girlfriend (or eventual wife) of a person who’s alcoholism is so severe that it has caused him to lose his place and his job and he drinks all of the time??? I’m guessing that he drinks and drives too. But even if he doesn’t, drinkin all the time puts everyone around him in potential danger.
You are probably a very nice woman, but you are probably also kind of a doormat and one of those people who still believe that you can “fix” a wounded, messed up man. You can’t. Only he can make the decision, for himself, to get help and to try to overcome his addictions.
I think that part of this problem is the simple fact that he flirts with you, and you already like him and it makes you feel good to think that he likes you. But you still have to remember that this fellow has some serious problems, and YOU can’t fix him. But you can be a friend, but back off a little bit so you don’t end up as the FWB’s girl. Just let him know that you care about him, but you are very worried and you would like him to get into some type of alcoholic treatment program such as AA, and that you, for your own benefit, are going to try out Al-Anon. He may or may not be willing (or even admit that he’s an alcoholic) to get help. If he is, then you can help him by taking him to the meeting, or finding out where the local chapter of AA is located. But other than that, you cannot fix him or change him.
Even if he does get help, and starts tomorrow, it would not be in your best interest to get involved with him until he has been clean and sober for at least a year, and fixes the other probles in his life. Don’t let him use you as a fun crutch or as a booty call girl or anything else that puts you in a position where you are likely to get screwed over.
In the meantime, you might want to get some short term therapy to figure out why you would even allow yourself to consider getting involved with this fellow, who has very serious problems. Every one of us has been attracted to people that we know are not good mate material for us. Some of us have had to learn the hard way, that it is best to find a place deep within ourselves to gain strength and avoid giving into temptation. We’re trying to help you to gain that strength now and not to have to go digging for it later, when you’re left heartbroken.
Unfortunately alcoholics tend to leave a trail of tears in their wake. There are always anecdotal stories about how this or that alcoholic husband or boyfriend turned out just fine and everyone lived happily ever after, but the opposite, is usually the case, the circumstances and the players are just different. It’s not worth the potential pain to yourself, to go down that road.