Should I call my friend out for being fake?

well...though tempting as it is i wouldn't "call her out" so to say. she'll probably just end up being really defensive which will cause her to become upset with you. if she's doing what you think she is, it's probably deeply rooted somewhere along personal insecurities so help her out and try and find out what's up. i totally encourage you to talk to her but try using i statements like when you do this "I" feel this way instead of something along the lines of "you're being really fake...can you stop now?" =) i hope you work things out, best of luck.