Should i keep her as a friend?

okay,im going to be long and boring and tell you me and my friends story. When she joined my school we were best friends. And everyone knew. Then we had our first argument. It was only because her other friend had talked to me,and she told my bf what i said twisting the words and the girl said to my bff that i said this about her 'she is and idiot and my worst enemy' instead of 'she is awesome and my bff'. We made up and became stronger than ever. But then we fell out because i sat with her other bf on a bus and she wanted too. But yesterday,we fell out just because me her and another girl and me and the girl left the changing rooms without her. But since the fall out before that,the other girl became mates with us too. it was like My bf was living to annoy me,wind me up. She became fragile,and at any words i said to her, she said she hated me. I love her,and our new mate,but only alone not together. Should i try to make up with her or should i leve it and go on with my other friends?