Help me!!!!BUGGIN THE SH*T OUT OF ME?

Ok I try to avoid my friend who is SUPER annoying but everyday she comes over my house and I say I'm busy but my mom always lets her in to hang out with me. ALSO she had ice cream and she got some on my bed without tellin me and now i have an ice cream stain the size of an APPLE on my bed!!!! OMG SHE IS ANOYING THE SH** OUT OF ME HELP ?!?!?!?!?!?!?!?!?!?!?!?!?!