My husband wasn’t or isn’t an alcoholic but he’s a previous drug addict. If he’s in denial, it most likely won’t work. He has to realize there is a problem and accept it for rehabilitation to work. Of course he can choose to go to therapy, etc but at least in my experience… it won’t stick until he’s ready for it. I would voice your opinions, because they do matter but I’m not sure what his response will be. Unfortunately when it comes to addictions, it can often lead to separations. I love my husband very very much but i did break it off twice for a couple months each. It becomes very stressful, takes a toll on you. Don’t enable him, don’t enable the addiction. Change can happen though, my husband ended up going to prison for 2 years and he did have one small relapse about 2 years after getting out , but he has been completely sober since and everything has been great. I wish you guys the best x