My best friend is kinda rude and very toxic and fake. she has one main person focused in her life at a time, then after a year or two, moves on and totally ditches, fights and kills the friendship between her and her old bsf. Right now, im her best friend, ive known her for a year, and lately we've been fighting alot, but shes one of my only friends, shes like the only one that actually gets me, whenever we're together we have SO much fun. she goes to public school and im homeschooled, but this spring im going to private school which means im gonna meet alot of new friends, should i just drop her? (oh yeah and she is dating my brother too, and she didnt even tell me, she told my sister before she told me and her and my sister arent even good friends:/) PLZZZ help