[No one's ever been honored to fool around with him before, and he'd be more amused by the choice of words if this weren't serious.]

We're not, uh, exclusive. Not here, we both know it's a bit tricky to maintain in a place like this, and I was sort of seeing someone, before he got here. He said not to break it off, so I've got to assume he's alright with me being with other people, as long as we're honest with each other about it.

[It isn't at all how they'd be back home. Crowley hates the idea of sharing Aziraphale with anyone, and has very little interest in other humans, but it's not really practical in Duplicity.]