Wow... I have read all the advice and comments made here and they are all so touching and shows how supportive everyone on here is! Being in relationship with an alcoholic or an addict in general really is hell on earth. I honestly don't have anything much different to tell you except reiterate what most of the people here have already said which is do not let his addiction take a hold of you as well! I suppose that this is where tough love would come in, talk to him again(I am sure that you have talked to him about a hundred times)about his condition and try to show him exactly what he has lost because of his addiction and what he stands to lose in the near future! The ultimate thing would then be to give him an ultimatum which as we all know could end up leaving you with a broken heart. I hope that his love for you can clear his mind and that if you do give him the ultimatum(that it is either he seeks help or it's over) he will chose to seek help and clean his act up! Finally I advice that no matter what because it comes across that you truly care deeply for this man, always be there for him... I believe that one day he will realize that the addiction is killing him and will need your support. Try to always assure him of your support but making sure that his addiction doesn't cripple you. All the very best.