Responses

Or... Maybe, just maybe, the weird girl wanted to have a normal high school life (have a boyfriend, make new friends etc) because she doesn't have a long life to live, maybe before their graduation she'll die because she have an untreated illness or what. Just my analysis tho with the way she acts and with the flow of the story.
why do ifeel like that the girl only like him out of jelousy and the fact her grades going down? also that mysterious girl i feel like she"ll make the boy liker her so much she'll eventually break up with him after using him
the girl wanted a normal high school life and those 2 is gonna help her make it somewhat happen