Erza…..he is under the control of his alcoholic condition, which gets stronger and stronger over time...as the years pass. It is a very, very powerful force....
You have asked him to give up the thing that allows him to cope with life....to deal with all of his emotions....
With any practicing alcoholic....anyone and anything that comes between them and their drinking is regarded as the ENEMY....even if it is a loved one.
You will feel, to him, like the enemy, right now.
That he doesn't love you is unlikely, but it does give him a "logical" reason to say to himself and others....because, otherwise, he would have to accept that he would have to quit drinking …..which probably sounds like a death sentence to him---something that he feels powerless to do....
can you say what kinds of help he has sought out when trying to get sober?