i'm so drained bc of this friend

so I've had this one friend i was close to since 5th grade now fast forward to 10th grade, she has changed a lot. she made some new guy friends around last year? (i think) and she hasn't been the same since then. she got so influenced by them that she started using the n-word and when i confronted her about it she said she got influenced by me?? i never even used that word my whole life and she didn't even make sense. i let it go bc i didnt wanna fight w her. then she told me how she wrote the break up message for her "guy best friend" and what makes it hilarious is that she has always been against this sort of things. she had this one guy she was friends with and he apparently asked one of his other friends to write a confession message on behalf of him and she was really mad about it because obviously the fact that his friend was the one who was sending the confession instead of him looked like he wasn't even serious bout the girl he was gonna send that confession to. but now that she did the same, isn't this just hypocrisy? and she called this one girl “play girl” and a “horrible person” bc she dated a lot of guys and she didnt even know that girl personally BUT her friends are literally the same?? one of them was still into his ex when he was dating a girl but for her, her friends are “nice” but others are horrible even if they do the same shit lmao. i have tried confronting her bout it but she just defends her friends and am so done now IDC anymore.