AITA for giving up a two-year friendship for this?

Never on earth I though I would be doing a post but here I am. I was in a friend group of 4 people Aubrey, autumn, Ivy, and sally. I was normally close friends with everybody except Sally she was the only one I had fights with. At one point when I just got out of a fight with Sally and I was telling it to Aubrey. Aubrey told me that her and Sally were writing a book about me, Talking smack I forgave Aubrey because she never wanted to do it in the first place. I confronted sally and the first thing she said was "who told you!" I got home that day and my mom had a little chat with her mom. She apologized the next day but I know she wasn't sincere. But I forgive to forget. One time I told Sally that her earrings reminded me something from demon Slayer. (I am an anime fan) And then she walked away saying "demon Slayer demon slayer that's all you ever talk about." Yet it was a compliment! And everyone in the group plays animal jam an online game. If you don't know it is probably look it up. We were all in the same group and only two of them had the subscription to make a group. Then they kicked out Aubrey and then they kicked out Autumn and at this point I was getting sick and tired. So on my birthday my sister got me the subscription and the first thing I did was left that group I made a new one with Aubrey and Autumn. And if you're wondering why I didn't unfriend Sally in the first place it's because if I unfriended Sally I was afraid that ivy would be mad at me because ivy and Sally are friends. It took me a long time to realize ivy is literally and never mad at me and that's why I love her. So during our summer break I buddied Sally I blocked her and I reported her and I kept on reporting her because she called Aubrey an A-hole on animal jam but the only way it went through was because she said @-hole. Autumn's Grandpa at that time died 2 days ago and Sally was still being a jerk. When summer is over I'm going to confront her. Let me know if you want an update.