Hi Matt, and Welcome.
Have you tried this "I statement": I won't have a relationship with someone who drinks to excess. Then sit back and see what she DOES. Not what she says, but what she DOES.
I have been apart from my Xabf for over 6 months, and I left with the above statement. He promised to stop drinking. He hasn't. But meanwhile, I am safe and secure in my own life, working on taking care of myself and looking to a future without alcohol addiction in it.
My heart goes out to you, I know right where you are.