I'm sorry that your in so much pain.

I would tell your girl friend in a non combative way that you don't like the porn. There are a lot of people who do not want their significant others to watch porn. I think maybe you might need to go see a Dr. or a therapist to get help with your depression. Some people don't understand about mental illness. Why I have no idea. I suffer from panic disorder, and there a lot of people who tell me it's all in my head, but it's not. I take meds for it. Keep posting, and try to take care of yourself.