That's a really messy situation, and I feel badly for you. In my experience, I could never make situations like this any better. I could only get out of them, learn my lessons and move on. People don't just forgive and forget things like this, and rarely do they want to continue any type of relationship.

I suspect that right now it looks like a lot of stuff is "just happening". That may be, but you've made some choices that have fed into all the Happenings. I would suggest that you get some professional help to help you get out of this current nest of drama, and to see what you might have done differently next time. That was the only way I was ever able to get past and move on. I needed someone outside of me to help explain what was going on and what my part in it was. Sometimes drama just happens, but most often I have made choices that make it just that much MORE dramatic.

I'm sorry the whole situation has you so upset. I'd suggest that you remove yourself from these people as much as possible and try to get on with the rest of your life. It really sucks, but people are just like that.