[Kazuya, curiously enough, flushed a little. It seemed he was aware that his "checking in" was potentially weird]

Uh, you noticed? Hm... [After a small pause, where Kazuya seemed to be mulling over his answer, he said;] Yeah, I was. I didn't come into the room or anything, like a creep, I just, y'know, poked my head in and listened for your breathing.

[...wait. That sounded creepy]

H-Heartbeat, I meant.

[Noooo that was even creepier! Damn truth curse...]

Ah. I mean... yes... damn it, I should've just kept it at that.