
He can’t admit his feelings or don’t know how to express them.
At the spa, he could had said he was into Dan or Heesung could had understood his behavior was “Dan is mine because I have feelings for him”
He is being a Tsundere. An extreme one and did something he will regret. He needs to grow up and realize his feelings and start treating Dan right.

Dear Tmsmyz.
You just being a COWARD. Can't handle my replies, then pathetically blocking it. Think have some controls over me? I can't even get angry at you being so pitiful. Why pitiful? Because you dramatically and so stressed to silent what you called 'haters' yet you have no confident to face the banter other opinion. So here you are trying to silent me. But all it can do just stopping your direct response. Dear COWARD, you are pathetic.

I blocked people because they are bad faith actors. When they can show me they are good faith actors and genuine people I will unblock them. Blocking does not stop the conversation. Blocking does not indicate I am a coward. Blocking is expert advice on how to deal with a troll or cyber bully. You are being the coward with your pathetic insults. The name calling is abusive and immature. You have no opinions. You have the story details wrong. How am I silencing you? That was joke. Thank you for sharing how cowardly you are. You exposed yourself as the real coward. You took the lost because you can’t handle a conversation with me. You lied about my comment and about me. You retort to immature name calling. You are being pathetic. Blocking you didn’t stop the conversation. I don’t chose an easy way. I marked you for your bad behavior.

Talking about yourself of being stupid?
If you r none coward, then you won't do this pathetic thing. Your entire action just screaming; AAAARRGGH I CANT SILENT THIS WHAT DO I DO? WHAT TO DO? Oh right, there is this tab. At least they wont haunt me down, so i can say whatever and whenever i want to say in my CONFORT ZONE.
Wtf is wrong with Jk??