[It's absolutely because he had to. He had no way of predicting that Gonta would ask that of him...but thank you for not bringing it up.

Gonta is the classmate he is the most miserable over. He doesn't need any reminders for that...]

Are you gonna try and figure out which ones are which? It probably doesn't matter, so don't spend too much energy on it. I mean you only have so many hints to go off of to figure any of them out.