Hi. Do you have any family support to you turn to?
You say you don’t want to lose him but it’s not ok to be mentally, emotionally and physically abused.
I understand that you love him, and he “probably” does too deep down but at the moment he is not himself and person doesn’t choke and hit and call someone names if they love them. So until he is clean again and sort himself out you need to take a step back and have him choose his alcohol or you. But can’t be both, or you will live like this for many more years to come, and then one day look back and say where have the years go, what did I do to myself. I don’t deserve this. Your mental health will suffer and you will make your self sick and worse.
So you need to think about yourself first and take care you YOU! because he is obviously taking care of himself and not worried how you feel.
Good luck.