How do I get over a jerky past friend who turned on me?

This girl was my friend for 2 years, never had a fight, one day she claimed I and my mom lied to her and which wasn't true, I told her I got a good high paying job whoch was har dto believe, was she jealous? A few days later, I got a few messages on my cell from her friends that she didn't want to be my friend anymore. Of course I didn't believe them. Then I read my e-mails on the internet and she said herself she wanted to end the friendship b/ she didn't trust me, I never lied, I never trusted her either, she said I was a dork and geek and different from society, she made me cry, she turned on me have any idea why, I moved on from her fast, but the scar was, not missing her, but the reason why she turned on me and insulted me and embarred me