Matt...
I am kind of lost for words, not because I don't know what to say, I just don't know how to say it...
Hmm... you are not well. Get well. Take responsibility for your own life. Your girlfriend was not your physician, nurse, mother or caretaker. She was your girlfriend. She's a fellow human being on this road of life just like all of us. Share the journey with others, don't asked to be carried, you will be dropped, because others cannot do that job, nor should they.
That resentment you are carrying comes from unreliastic and unreasonable expectations of others. It will keep you drunk.
Man up. Live your own life. Share it with another if you can. And, if you want, or need, to recover, there is support out there... AA is one place, but there are others.