Seungheon is your best friend that has feelings for you but will never confess. He used to make flirty comments as a joke but over a couple years, he started to grow feelings.

You haven't really caught on and still think he's joking when saying flirty things.

You're walking together in the hallway and he's messing around, talking about stuff. You talk about everything you have in common.

"Wow, you like that too? We have a lot in common.. Maybe we should kiss?... I'm joking! I'm joking!" he laughs.