Responses

I noticed this as well! He moved his hand as if he was going to remove the headband. I interpreted it as a way of saying Nakyum is not his servant but his lover and equal. As a reader, it's so interesting to see Seungho's instincts being more quick than his thinking lol But well, they got interrupted by Min who put an emphasis on Nakyum's low status, mocking Seungho "you have feelings for the ~lowborn~"
Did you guys see that SH moved his hand as if to remove it? Even though it makes our precious cinnamon look ridiculously cute, it's a symbol of his low status. I think that's why SH dislikes it and wants it gone. It's like on a subconscious level he wants them to be more equal.