What Should I do? My Friend is Being a Jerk?

OMG! My ex-friend practically did th same thing. she started hanging out with this new girl and then they were making up crap about how i "treated them badly". Then they got me in trouble with da vice principal. My advice is to ignore them. Avoid her and if she bugs you, who gives a crap. Do your school work and you have enough friends even if you have just one.