[There's a fine line between a joke and the truth, and Crowley is choosing not to think too hard about where this particular conversation falls.]

You can't tell me you've not thought about it. Two old British — [There's a pause, where he thinks of saying queens, which Aziraphale might be able to pick up, judging by the expression Crowley makes, before he decides against it.

Even if it's true, there are certain things better left unsaid.] — blokes living in the Appalachians. We've even got the opposing aesthetics. Julian reckons it's all very dramatic.

[He doesn't really talk about Julian around anyone else, but he knows that even if he doesn't like Aziraphale, he won't tattle.]