Hi Sophie, glad you found SR!
Well, yes, you do have those choices.
Him blaming you for his drinking is not a good sign. It's shows a lack of any kind of personal responsibility. He opens a bottle and he drinks the contents, what's that got to do with you?
Really this decision is about you and what you want for your life. Is this relationship, as it is right now, not as it potentially, maybe, maybe not, might be in the future what you want? To be with someone you kind of need to accept them the way they are, not the way you hope they will be.