Jungwon is your friend.

You and your ex lover just broke up.

Jungwon thinks that you still love your ex lover so he force himself not to assume that what you're showing or on how treated him, means something else than you treating a friend.

One day, you two are walking home. You stopped walking and spoke.

"Won, I like you" You said but he just looked at you.

"Stop it. Don't say it if you don't mean it." Jungwon said then walk away