To be frank, one of my 老友记 is a jealous, attention seeking mean 婊子, 子 btu she's best 老友记 with one of my close friends. What should I do??

This has happened to me before, I went over to the bitch, told them to leave her alone and if that dont help tell a teacher/or adult to help, they can really help

try to ignore her 或者 tell he how 你 feel maybe she just needs 更多 老友记 你 see no offense but 你 are also being mean your just looking at it from your side what do 你 know about what is going on in her life 你 are being selfish if your asking me tell her how 你 feel and then ask her WHY she actually is being that way then after and if 你 understand become 老友记 with her and tell your best friend why she was 表演 that way
{P.S. 你 need to comfort your best friend}

just be a good friend to your friend, try not to get too involved unless your frinend wants 你 to, but if your there when her friend is treating her bad stick up for her. dont ask for trouble, until her friend does