This just makes me burn. I've been there - except I was twelve, a whole year's difference I suppose. There is no way for a twelve or thirteen year old to defend herself against her own teacher. Ain't gonna happen. Firstly a student who rats out a teacher is persona non grata in many schools. Secondly, even if the student wants the relationship (I sure as heck did not), it's still the school's responsibility to protect her.
Ye Gods, what's next? Telling elementary school students that it's their responsibility to protect themselves from abusers?