Legisilation on "bullying" when it takes the verbal form is difficult if not impossible. Even if it was possible it wouldn't take long before it would be bastardized to the point of repressing all kinds of speech which I hope most people don't want.
Why she was bullied is really the problem in my opinion. She was bullied because she felt shame about flashing her tits and a roll in hay. I suspect the shame she felt is probably what kept her from standing up for herself. She felt she deserved it. The fact that she felt she deserved it is what is a total load of bulls***. She was fourteen. A fourteen year old starting to have sexual feelings is the most natural thing in the world and nothing to be ashamed of. The absurd notion that "good girls" don't do that needs to be done away with once and for all.