"Oh." Well, that's... no, he has no idea what that is. What is he supposed to say to that? It's hard to figure his roommate out, which doesn't bode well. Still, he takes a deep breath and tries to push forward.

"I should probably warn you I have nightmares almost every night," he says softly, looking at the floor again. "I'll try not to wake you up. But it might happen. Sorry."