yunho is a the student council president  and has a girl friend seulgi i think it was. but that was before he realise Jaejoong. 

Jaejoong was aloner a nobody but serectly liked Yunho,  Yunho didn;t think much of it until he pick up his nepew from darecare and Jaejoong their helping out. It wasn't until their was leaving That Jaejoong gave up his taxi giving it to Yunho as his nephew was sleep,  Jaejoong said he wait on another but Yunho didn't like that ieda and ofter to share the taxi.

When Seugli realise Yunho fell in love with someone she lets him go, waiting him to be happy but Yunho been stupid thinks Jaejoong kissed another prseon.

yunho fell in love with jaejoong. and seulgi knew about it. Yunho goes to jaejoong but  thought he saw something he didn't Jaejoong kissing someone else. I think it was Hyunjoong. Jaejoong was geting a gift for Jaejoong a bike something like that...

hoping someone can help