I recently fell out with/called it quits with a close friend who kept hurting me and making me feel bad when I was upset by her actions. We were a group of 3/4 friends who were close especially the 3 of us, and now the other friend who is still one of my best friends still sees her (obviously I wouldn’t expect her not to) and I feel sad every time I see something on social media of them together. I see the one I’m still close with more regularly than she sees the one I’ve ended friendship with, so I know it’s nothing personal or anything unreasonable but it still hurts. I guess I’m sad that I’m no longer part of it and it also makes me think should I try to reconcile with her, even though all other times I’m fine, better probably, without her. I know she would probably hurt me again and think we are incompatible as friends due to the reasons we fell out, and I can actually think it’s ‘her loss’ in a way as I know I am a good friend and she has very few other friends and I have a great group of other friends. I just don’t want to feel sad and down each time they see each other. Is this unreasonable, what can I do to not feel like this?