Welcome, feelsohelpless, I can't be of much help to you as I was the drinker. I have seen lots of help and support for people with similar problems as yourself, I'm sure someone will be along soon.
I do know that at this moment in time you are his enabler and as long as you keep doing that he will let you. My dad was a big drinker, really nice man until he drank then the mental abuse (sometimes felt worse than physical abuse) was terrible what we endured.