This deserves an anime of high class animation. On the level of madhouse peak days. This gets me pumped on the same level of watching daiya no ace, ippo or even haikyuu. Maybe it's the art or the setting? Whatever thanks for the translation and release!
So there are 2 routes I'm guessing the teacher has. One route is to try to reacquire our mcs affection by either helping him directly with his situation. That would mean she has to somehow solve the situation with his family and I'd guess with her going yandere there might be some more...