Friend issues??? help please!!!?

PLZ READ ALL! So i had been friends with "fran" since kindergarten. We used to be inseperatable, like bffls!! I dont know how or why but in seventh grade we slowly started to drift apart. Things kept getting worse. She became really popular, completely ignored me, said things behind my back, and when out with my best guy friend she knew i had really liked for a while. As if that wasnt enough......ok so i wanted to be student council prez since 5th grade and fran had ALWAYS known that, no doubt. So there she goes and runs against me, beats me and im crushed rly hard. The next day she has the nerve to come up to me and pat me on the back and say "nice try." Ya know in one of those voices. I went to the bathroom and cried. Its better this year, I mean we talk and i guess were sorta friends, but i still find myself so mad at her and comparing myself to her. I feel like I'm in a constant competition with her, and i think she feels the same, but who knows. Some how to this day,mid eighth grade, i still have this hope that we will be best friends again. I don't want to feel this way. Is it wrong that i hate her? and that i still have this insane hope? what do i do to get over this? words of advice? words that will make me feel better and not make me feel like crap???