I love my best friend but she's been too harsh ?

Wow, I'm sorry that really bites, I had the same situation almost. Please please please do not follow your friend anymore. Forget her, she chose the route of many dumb love birds and ditch their true friends. Your suppose to balance your time with your love and with your friends. I strongly advise to forget your friend, honestly, you will feel so much better and when she comes back around after she is dumped, you will have moved on.