I have 2 groups of friends: my mains- the ones i hang around with most and are like my best friends, and the siders: the ones who i only hang with because my mate who i walk to school with is their mate.

Now, my friend from the mains (let’s keep her anonymous and call her Melody). Melody told me that one girl from the siders (let’s call her Anna) was calling her a c*nt and saying she’s toxic when she really isn’t. she’s also tryna start fights w Melody according to the mains. Now, the girl i walk to school with (her name will now be Polly) agrees with Anna’s side of the story which is “Melody was being really bitchy and toxic to all my mates. she was trying to start fights and all so i say what’s true (that she’s a toxic c*nt) and she’s starting to pick fights with me with all her buddies like Sandra, Ali and Angela (all fake names) and i’m not up for it but i will defend myself for as long as possible” is what Anna said. Polly sides with her and me and Polly have been best friends since like 2011. AITA for trusting my mains (Melody, Sandra, Ali and Angela) over Anna and Polly just because my mains are a lot nicer to me?

Just a photo i took so i can ask the question.