Hi and welcome! The only thing you can do is look out for yourself. Set boundaries of what you will and will not tolerate from him. Abuse is not tolerable, ever.
And if you say you'll leave, if he drinks, then leave as you said to let him know there are consequences.
We also have a friends and family forum you might find helpful.
https://www.soberrecovery.com/forums...ly-alcoholics/