Responses

I think he believes Nakyum tried to run away because he couldn't accept his feelings. He probably feels very hurt and betrayed. You can tell from the body language that he is furious, but he doesn't hurt him. He takes him home. OK so he locks him in a shed, but he made sure he had a fire for warmth and even gave him his robe. It's obvious he still cares deeply for Nakyum, he just needs to let the boy explain what happened
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Why do you guys think Seungho tried to choke Nakyum?
Was it because he thought he ran away again and got really angry?
And also, did Seungho not see how his lip was cut and bleedind since he'd been obviously hurt before?