When U Realize She's Not A Good Person

My so called bff is a self serving egotistical narcissistic cunt. She has a superiority complex. She sneak disses her friends n family, alwayz trying to sound like she has more money than her friends n family. She alwayz lies n embellishes shit. Alwayz try to make herself seem like the pretty one on in our circle. Or like she is prettier than me because she os light skin n doesn't wear makeup. She jac a nerve to tell me i was being a good friend cuz i was cultivating a new relationship. Meanwhile she is currently fucking with an ex fuck-buddy of mine. I don't trust her. I really want her to leave my life. She's is about her. She is not whom she says she is.