I don't think we talked outside the kitchen all that much. I was hungry as soon as we got back, and we just stayed in there.

[Which means he heard all of it, save for perhaps Shell's tearful confession of what love means to him by the door.]

[He's silent for a moment or two, thinking about what was said that night, as well as what he heard Reign and Chuuya talking about in his room (and even now, he's not sure whether he regrets not eavesdropping, or else just pretending he didn't hear anything).]

I already told this to Chuuya, but... One wasn't the reason I stopped drinking human blood. I still don't know how much you know-- about me in general, I guess. So I don't know if you knew that or not.