Is this cyberbullying and can i report her to the police?

That definitely sounds like cyber bullying. I don't know if you can report her to the police, but would you want to? Most people who are cyber bullied are alone, it sounds like you have some friends who are sticking up for you and that's good. hang in there, it sounds like most of what she is saying and doing is just ridiculous and that anyone with half a brain wouldn't believe. She's a ***** and will get what's coming to her regardless. Just block her on facebook