I Say There's No Excuse For Treating People Like Crap

My friend has been having a diffrent attitude lately. I met her like...two years ago and I though she was a sweet loving fun girl but as many times I hung out with her, she showed her true colors, she insulted me and accused me of how dumb I am. She manipulated me and always asks how much money I'll bring when we hang out. When we hang out with our other friends she doesn't treat me like shit. Many times I wanna tell her off but she always gets angry when I "dont do things right."
She can be brutally honest but she cares but still. My other friends dont know that she treats me like this. I wanna tell them but I'm afraid they won't believe me. I'm trying to do everything to get it right and make her happy but she ends up getting angry and takes her anger out on me.