I agree that consulting a lawyer is a good first step. Getting a free consultation doesn't mean you are filing for divorce. It means you are learning the facts for your situation, based on the laws of your community.
I left after another drunken night that included loss of body function and black out.
I left with three children.
After 3 days, I asked him to find a place to stay as I needed more time and the kids needed to be in their rooms/routines as well as taking care of family pets. I think the pets was the reason he agreed to leave temporarily ~ because when we returned to the house, it reeked of dog feces!
Ours was a temporary exchange of use of the home. I ended up moving out of the home 6 weeks later.