People can get weird when they find out their friend isn't who they say they are, so it's probably worse when someone isn't what they say they are, right? He's just mentally preparing for the possible worst. He really likes Kun-woo and it would be awful to lose him over something like this! As though 'this' isn't kind of a big deal.

Jaeseok's hands slip from Kun-woo's shoulders as he so easily announces himself. 'I'm a vampire now' like he just switched over from drama club to book club or something. 'I'm a book club nerd now'. Insane. "Why didn't you tell me sooner??" A pause, and then he snorts out a derisive laugh. "Right. Because you didn't know you could. So what happened? How'd you get yourself snatched up by the vampires?"