Wondering, I applaud you. It is best to get yourself and your kids out of that toxic environment. It's good that he's not drinking, but since he's not involved in a program such as AA that teaches one how to live sober, he's going to be a miserable and nasty person who has just put the plug in the jug.
If you can get a family member to take you guys in, that would be ideal. If not, try Rick's suggestion of a safe house. While you are not being physically abused, you are suffering from emotional and mental abuse...and who's to say he wouldn't shoot you and the kids, too? You hear about that type of thing a lot.
Your primary focus at this point should be protecting your kids and yourself.
Hugs,
Connie