Note:sorry for not updating 9th grade sucks and I'm giving my sendups also this is sample of what I'm thinking of the yandere reactions so tell me how u think about it
Mark:
It was like being a yandere chose him(idk if that made sense lmao) everything thing went so fast that he couldn't function how it could come to this the moment he saw you he knew you his. Before even knowing it he was there stalking you, following you everywhere and he became friends with you so it was even easier for him to get more information
Lee heachan:
I feel like he would show it that much I mean everyone knew him as the sun and the mood maker. So when he saw u he felt the need to have u. In public he wouldn't show it like if you were to appear in front of him he wouldn't really act different but I see him seeking letters into your locker might even be the reason why your friends stopped talking to u he spread rumours about u so when u were alone in the classroom crying and thinking what u did wrong that was the right time to approach u that how hyuck got close to it might've been a long plan but it was worth it