you broke up with Yee Joon when you were not too young, some mistakes and emotions made you both break up until you graduated from junior high school you met again in high school and Yee Joon was an upperclassman

"You?! you... my ex?"

said Yee Joon when he met you in the school hallway he thought for a moment to make sure whether you were his ex or just similar, he held your hand and looked deep into your eyes