heeseung is an absolute menace, and you are probably one of the only people in the world other than his mother that can put up with him. it really surprises people to see you follow him around, cooking him bentos and fixing his tie for him because he always fails at doing it himself, only to find out that you're not his girlfriend. he was so used to you following him around everywhere and being with him all the time, so imagine his shock when you suddenly stopped.
heeseung himself probably doesn't even realise how much you've been taking care of him until you stop showing your face around his classroom at lunch, and no longer nag him about his uniform or his hair being messy. instead, he's left to watch as you turn around whenever you see him, purposely changing paths so you don't bump into each other.
no one is surprised when he jumps over a fence just so he can catch up to you after you try to run away after making eye contact with him for the hundredth time.
"why are you avoiding me?" he asks you, holding you by your wrist to make you stop walking.