Hi Circus
Welcome to SR.
It sure sounds like there is a whole lot going on here. I can't comment on the sudden changes in behaviour. Are there underlying issues which are causing your H to be stressed?
One thing for sure is that no amount of Whisky is going to help his cholesterol level. Is he deluding himself by finding an excuse to keep drinking?
We alcoholics are great at delusion and in the course of perpetuating the myth that "we're OK", we actually start to believe ourselves. If alcohol really has taken a hold of your H, he can find lots of support here or at AA. He needs to be strong and genuinely want to do something about it.
Meanwhile, you need to take care of yourself.
Good luck.
Rich