My 12 YO DD has almost no friends at school and frequently comes home and cries about it. Her 'best friend' has stopped talking to her, and has told everyone who she fancies, who she hates, and is spreading rumours about her. There is one girl beast in particular that trips her up, yells at her, and is generally just being horrible. I've tried telling the school, but they are just sitting on their arses and doing nothing about it. What should I do??