I didn't expect that to happen ... I was listening to some music and then bam it hits us with a revelation that she died 3 weeks after. This one reminds me of one other manga (The name escapes me right now) Where in which there is some girl and guy who likes video games and the girl comes to like some other guy and when this guy confesses to her she accepts and then the protagonist is unhappy about this and tries to talk to the girl but then she runs away from him because they got into a fight and from that she then gets transported into the far off future where the protagonist got a girlfriend but never forgot about her