I can kind of understand some of those classmates being shitty, but for the teacher to be that shitty and braindead. After he was the one pushed down the stairs, after she admitted in front of all those other people that the intent was for him to die, then wishing death on both him (again) and his mother, he's the one who has to apologize? Fuck off.
Astoundingly she's somehow even more braindead by thinking that he'd want anything to do with her after things like that happened.