Oh no.

I am so, so sorry this is happening to you. Horrifying.
His actions are waaay over the line of acceptable human behavior; doesn't matter what his excuses may be. He feels entitled to get stinking drunk? Unacceptable. He then feels entitled to harm you physically? Appalling -- and, likewise, he's committing a crime!
If a man is unwilling to keep me safe -- even from himself -- then that's a thunderous clue as to how much real regard he has for me.
I lived in your shoes for several years; was married to my abuser. And oh yes, the remorse and the pleading afterward -- and then the cycle begins again. I was quite young and very naïve emotionally; so for a long while I at least semi-believed him when he told me it was all my fault, and all the other shyte abusers shovel forth . Deciding to gtfo took a long time for me; he kept promising to change...Well.
You don't have forever to wait for him to be a better human being. Please, find a good counsellor or therapist --- you will need to heal a lot of emotional wounds.
Above all, please please be safe.
Strength to you, my friend.
Chyia, extremely concerned for you