I seem to be the only one, but I would make an effort to reconcile. Someone that you've been through that much with, it really could be a miscommunication or something that could be worked out. Girlfriends are so important, especially as I get older. Sure plenty have faded away. But quite a few I have regrets that I did not put in more effort to keep the friendship going.
I would get offended by things they would or would not do. My ex therapist would tell me perhaps I should lower my standards. That made me mad at the time, I did not like that idea. But truth was, I did not want to be judged or held to high standards while I was going through a hard time. I do try to be a good friend, but I'm far from it at times like when I isolate. So I considered how I'd like to be forgiven in those times, and so I should be forgiving towards my girlfriends as well.
Just another perspective.