Courting just came first, right? Then again, Jae-Ha really never paid attention to that kind of thing. Not only out of not having any interest, but just his general upbringing, even though Gi-Gan certainly tried to teach him about it all.
What he (also) wasn't expecting was Kija's retort.
"No, I'm not." Was he? He wouldn't have even made the comment if he had been thinking that Kija wasn't, would he?
"It was just a comment, you know?" . . . "You're plenty good looking and good at heart, though." Change the topic, self.