Who says she's trying to placate him?
To me she's trying to play it cool and turn around the situation, or at least I'm assuming that's the intent.
Plus we don't really know what were their intent when they found her lyrics, if they were really purposely trying to bully / humiliate her or just were being insensitive as fuck, but I imagine we'll find out soon enough.
Cool how she's turning this around on the bullies (assuming it was intentional) so now even they fall for her. Girl's gonna build up a harem in her own school at this rate.