https://www.youtube.com/watch?v=z_NCgPCYyZM&t=2510Enna is so fucking cringy, you can see exactly the way her brain works.
She is trying to come off as dumb while revealing that she did ok in school, so she pretends she doesn't know what GPA stands for. What a fucking cringelord. Also she sucked at math, a sign of female-brain syndrome. While she excelled at English, which is a highly subjective subject that's mostly about getting on the teacher's good side.
This is something I've noticed about Enna. She's quite well organized and has a good memory, but she has very little reasoning ability and doesn't adapt well. Much of this is her very small and limited female brain.