Is it okay to be close friends with my bestfreind's enemy?
Long story short, me and my best friend has been really close for almost a decade, we met another girl who also got close to us around 5 years ago. We had a great friendship and were a great trio, they are the closest fiends I ever had and I valued them so much, we all get each other and would always hang all the time even until the next day. Without getting into details, there was apparently a problem between the two of them and built up resentment from problems in the past that built up ( we were fun but I guess we were never really good at communicating and confronting one another) my best friends cousin basically did a "loyalty test" out of no where ( which I still feel like that was weird to do) and eventually got my close friend to spill her issues and past conflicts she had with my best friend as well as some personal information my best friend told her that she found messed up and evil. She opened up about how she feels while also advising her to distance herself from my best friend since my best friend has always talked bad about her to us when she was frustrated, the cousin and my best friend also used to get into a lot of disagreements but would always make up since they were family. Shortly after, the cousin tells my best friend this and she immediately cuts her off blocking her on every platform, I've tried to salvage the friendship but I can tell now that it's done from both sides. The thing is, I know what my close friend did was wrong but I would feel horrible abandoning her, she's been with me when I needed someone to talk to and is one of the most understanding and patient friend I ever had, and trust me she's not evil she's so sweet she just happened to have unsolved problems with my best friend, don't get me wrong, what she did was wrong but she's still a really good friend. She's also only close with a few people, me being one of them. My bestfriend cousin was apparently telling my bestfriend that if I stayed friends with my other close friend thats really wrong since im the best friend and should choose a side especially since I know everything that went down. I just feel conflicted, on one hand I dont want to look like some inconsiderate jerk saying things like " oh well, she hurt you not me im still her friend." but on the other hand I know her deeply and dont want to just cut her off, she even went to me during this situation trying to see where she went wrong and said that she just thought she was being genuine. I need some insight on this situation, do you guys think it's a big deal or will I look like a bad friend?