he's your best friend who secretly has a crush on you but doesn't want to ruin your friendship

Haechan always treats you well and likes to tease you and he always thinks "why not me?" when you leave him to meet other friends

this time you sit at his house and do homework together. at one point you remember about the meeting and you have to go there because you promised. leaving him again?

"where are you going?"

he sees you getting ready to leave and sighs quietly. again