is she a snobby lying decieving person ? please help me i seriously need it!?

well lets just call her friend A.well, friend A thinks that im a freeloader and that i always want to go to her house,which is NOT true because i have a house of my own and i dont even get stuff from her im the on who gives her stuff to borrow Which she never returns ,but she acts rich,and other stuff. and apparently she started being really mean to me when we started tenekling .a weird 2 pole dance for p.e and then she just started being really mean last time, she even tried to twist my ankle.the other girl she was tenekling with even saw her face when she tried to trip me. i dont want a revenge war of any kind and she has alot of aquatenices but no true friends.she even turned almost everyone against her ex best friend who is my friend now but that was last year her mom and dad and everyone else in her family is nice ,but she is super mean to me and if i started being mean to her her "friends" will start talking **** and being mean to me.she alwasys trys to be the center of attention.she acts nice in your face but ,behind your back she will talk ****. i dont know what to do .should i still talk to her ?even though i know shes never going to change ? be mean ? how can i settle this not talking too her? HELP ME PLEASE I SERIOUSLY NEED IT