I read your post in Smoke Signals and I hope someone in the area can help you. I am sorry to read of your troubles and hope that it sorts out given time.... You need to stay strong as you are still needed by them. Take care of you.
I'm sorry you are feeling so bad. :-( And.....as much as you want to just pack a bag and leave...dont unless you have a place to go to. Being out on the street with nowhere to go will only drag you down further and you sound pretty depressed already. Have you and your girlfriend talked about giving eachother space (without either of you having to move out)? What is she in your face yelling about all the time?
Hopefully someone will read your message in smoke signals who knows them and can get her the message. I am sure this is very difficult for you. Strange things happen in life and sometimes only time works those out. Hang in there.