I spent some time in another bedroom. I moved into my oldest sons BR as soon as he left for college and stayed there for the next couple of months until M moved out. I did this with every expectation that our marriage was over and she was leaving and I clearly communicated this to her. I can't imagne living in your situation for any length of time.
Bernadettes post is truly one of the best posts I've seen here in a very long time. I say that because I remember what it was like as a teenager in a dysfunctional alcoholic home AND I remember what it's like as the spouse of an alcoholic worried that my children were watching and learning future behavior.
There are much better ways to live.