Responses

No, that isn’t being kept as hostage. Hostage is when you kidnap someone (forced) in order to get a certain benefit/thing in exchange. Suha willingly stayed even though Jiwoon was being toxic about that situation. He could’ve left anytime but he listened to Jiwoon as he loves him and cares for Jiwoon.
RAWS SPOILER
the way suha just answered the door. like... it was never really locked up... xD I thought this whole time he couldn't even go out but he could... he just didn't.
and ofc jiwoon told the staff that he was sick but idk guys, I feel like Suha could've escaped if he wanted to