I left, and lived in an apartment for six months, then move back into the house when he left it.
I don't have kids and kept our finances reasonably separate.
I had to know I could stand on my own two feet so it was a matter of running the money and seeing if I had enough.
I also did all the bills etc. I took the responsibility of making sure the ones that needed to stayed in my name and the ones that did not, did not.
I also had to realize that the drinking was going to happen with or without me. I spent the first six months away experiencing the same emotions I had at the house with us in it. That was part of my illness. Time and recovery helped it. I could not start really healing it until I moved out of the house though.
Gently, are you really safe? If I remember correctly you had a scary time of it not so long ago....
I did that too, and was in a lot of denial about how bad the situation was.