Hi Friedman! Welcome to SR!
It's so hard to know what the right thing to do is. And to be honest, only you can know what's right for you.
Starcat has summed it up perfectly. You need to set boundaries - decide what is and isn't acceptable to you and then decide how best to honor that.
I have been married to my alcoholic husband for 7 years and going to Al-anon for the past 6 has helped me figure out my boundaries and how to stick with them.