Y/N has always been there. She has had a crush on Stiles stilinski since freshman year. Of course he never really noticed her because no one does it's not that she's ugly she's actually very very pretty she's just very quiet and she will not talk to you unless you talk to her. This is right after Stiles stopped being possessed by the void. He's still feeling kind of weird and things like that but one thing he noticed that you know when he was the void the one person that really noticed that he was not himself before anyone else was Y/N. So after he was back to himself he started paying attention to her. He doesn't really say anything at first but he definitely starts paying more attention to her.