She's spreading gross rumors and ruining my life.?

I told this girl who I thought was my friend, that I love Raisin Bran. We got into a fight and now I hear from my friend that she spread rumors that I like guys to pour Raisin Bran on me while we have . WTF. I'm not going to school today, but my friend texted me that everyone is calling me a twisted pervert and a slut. I don't ever want to go back again! How can I convince my mom that I want to go to another school?