Ouch. I'm sorry you're going through this.

Your girlfriend is clearly very jealous, which I get a little bit...except it looks like when you hang out with your friends, it's a group-not just one-on-one with one of them. It seems like she's emotionally mistreating and manipulating you-that's why you feel guilty spending time with a group of people you connect with. I know the easy answer is to say, go make some male friends or something, but just getting a brand-new social group is much easier said than done.

Also, today my 3rd friend who I barley see any more, her father died. I found out because my other friends got a phone call. I chose not to go because I did not know if it was my place to go see her on the night her father died when we have fallen out of contact.

Are you sure it wasn't because of the stress and anxiety of consoling your friend coupled with your girlfriend not wanting you to be around her anyhow? That's a tough place, I'm sure thinking "well, I haven't seen her lately anyhow, so maybe it's for the best that I don't go" is an easier justification.

Will she hate me for not seeing her just because she did not call me? I feel like I should not come console her if I was not invited.

Again, I'd question your actual reasoning for not going, but if you were as close as you said, I doubt she'll hate you. She might be a little hurt that you didn't go, but it's forgivable. From a female perspective, I would so touched if an old friend I don't see much anymore came to see me if I was going through a bad time. I wouldn't expect them to come, but it would never hurt if they did.

I think you need to reevaluate your relationships here. Do you really want to be made to feel like shit whenever you hang out with your friends? Is your girlfriend actually worth losing your friends, and are your friends worth the tension and guilt between you and your girlfriend?