[This guy is so polite, it's refreshing (and a little weird, given who Yukine usually hangs around with).

He shakes his head slightly to indicate 'don't worry about it.'

And as for that question-]

Trust. [Period. ...He supposes he can expand on that though.] For example, my god has a shady past. I didn't trust him at the start. And because he's a moron with bad habits he didn't trust me with things he should have either.