For some reason.... I'm expecting that the guy turns out to be a scum bag or maybe... something really wrong with him.
IMO He just seems so suspicious!
Witnessing his break up scene with no context.... with some foreshadowy gossip
Falling in love with the MC at first meeting? (typical Shoujo, but i dunno, no development?)
Doing things for her beyond normal expectations like making study notes for all classes, waiting 2hrs early just to wait for the mc in the morning and treating her so especially nice.... to the point where she feels she needs to reciprocate or feel guilty?? (potential for manipulation?)
I haven't really learned anything substantial about this guy so far to believe everything is genuine.