[I'm not kind is on the tip of his tongue before he swallows the words, knowing that this isn't the argument to get into.]

Is that what you're trying to do, unravel me? [He's asking a lot of questions, he realizes, but Aziraphale has never minded his questions. There's something in that, too.] Knowing it's there doesn't mean you have to want it. Accepting it doesn't mean you have to want it, not like... that.

[Because he feels like they're talking about sex, or were talking about sex, and that makes a difference.]