Hi, joy, and welcome. I feel that your SO has to find his own way, and you yours. So many people, women mostly but men too, post to this forum feeling sad and trapped. They have been with their alcoholic partners for a long time. Often they are married and there are children. Or not married,but also with children.
It is very, very hard for them to leave. Their lives are woven into the fabric of their loved one's alcohol dependency.
You are, fortunately I think, not in that unenviable position. You can walk away from your SO.
You should. Life with an alcohol-dependent person is a hard, hard road. They are wonderful people, often, when they are sober. But the drink takes them and only hurt and sadness can come out of it.
Good luck going forward.