You know, I've been thinking for a long time that he needed to drop this girl like a hot potato; she honestly had no good points to her personality (aside from, if you'll pardon the vulgarity, her "personality"). I'm slightly less antipathic to her now, since she seems honestly regretful and did apologize, but it's still shitty to have asked to copy Nanba's homework before actually delivering said apology. At least she's moving away from actually evil bitch and closer to clueless comedic romantic interest. Hopefully her character development continues in that direction. To be frank, I didn't expect even this much; too many times, characters like her - and worse - get forgiven with a shrug and a laugh by shonen protagonists (I'm sure I don't have to furnish you with examples).