From what you have described, it sounds you can demand all you like but he does not seem interested in making any changes in his behavior -- either his drinking or the way he interacts with you.
Can I ask why you'd want him to call you his gf again? And seriously, I'm not asking to poke a wound or belittle you or anything like that; I am genuinely asking: which of your needs are being met by this relationship?
I know that trapped feeling. I lived there for a long time and it was hard to get to the place where it felt like I had a choice. But when I got there, I saw very clearly that the choice had been there all along. When you are ready, it will be there.