[He's still seen enough to know Anya was right, and so the light contact immediately pulls back, and he looks suitably shocked, and maybe a little hurt by the accusation. That, at least, isn't particularly difficult to fake.]

I'm not- I'm sorry, this is embarrassing, I haven't slept in almost three days, my control is a little... [He gestures uselessly to his head.] fuzzy, right now. I should have said something to warn you.

[And he can't help but make a comment about it, brow furrowing, because seriously. Maybe he's not exactly on the highest of moral grounds right now, but there's still a line he won't cross, and he's tired of people assuming the worst just because he's different.] I would never force you into saying yes to something.