You aren't "stuck" because you didn't set a boundary before. Clearly it appears that this behavior is unacceptable to you. You weren't willing to live with the drinking, so why are you willing to endure this behavior that is equally disrespectful and upsetting?
You can decide any time that you are done with it. I looked at some of your previous posts and it sounds like this relationship is bringing you nothing but grief, between his family dramas and now this stuff.
I don't find it comical at all. Please take care of yourself.