Your GF is living in her own reality.
The best thing you can do is go to Al Anon, I posted 2 websites for NYC on your other thread, where you can find meetings for you.
There you will learn how to set Your own personal boundaries at to what is and is not acceptable to you. You will also find face to face support.
The 3 C's we live by are:
I didn't CAUSE this.
I can't CONTROL this.
I can't CURE this.
She will not find recovery until she is ready. Please take care of you.
Please keep posting and let us know how YOU are doing as we do care very much.
Love and hugs,