For that first part you mentioned, did we read the same part of the story where it was revealed that several girls were forcefully transferred out due to liking him? That's a bit more than "drawing a circle", if you ask me.
Second part, the whole reason he left her was because of him constantly being terrorized as shown by how she admits that she consistently treats him like that.
I will concede that him not trying hard in school is a LOT closer to the analogy you used, however, that could still be a result of abuse. This, to me starting off, is looking like a
Hanabi situation but we won't know till more gets translated.