I'll unfortunately never get to drink bubble tea because in every land I've lived in it's unpopular to the point you can only find it in a specific province in a specific city.. fuck.
@sighoon He gave her a vague description of events. She might have gotten it from his mom, but we have barely seen them interact, so we don't know if she would be on board for giving her that info. So somehow, she tracked down the girl, who was the ringleader for events that happened in his past. I think this girl was doing something that led to the realization of who she was.
Part of me wants to believe that she legitimately has his best interests in mind (moving on from the past, even though that would defeat the entire purpose of the last 21 chapters but sure!), and that the bully is not presented as a romantic interest.