Is this cyberbullying?

A girl has been following me to every site that I use and leaving comments on all of my accounts, calling me a whore and a slut and other names, as well as calling my boyfriend my “pimp” and saying things about ho I need to be on welfare and keep popping out kids so that I can keep said welfare (nothing against welfare people, as I grew up on it, but the way she is doing it is irritating). She is also following my boyfriend around online and making threats, saying she is going to send people after him if he goes to any of the events he likes, as well as placing accusations on him of crimes he did not commit and could not have logically committed due to location issues.

This is his ex that not only used me to lure us both out of the house and steal his stuff and flee to Vegas, and called me to threaten to slice my throat open and kill me if I didn’t dump him.

Friends in the legal field claim that this is not cyber-bullying, but I beg to disagree. Any ideas? I’ve read the laws and think it qualifies, but I’m being told no.