Yes, you've got quite a bit to think about, don't you?

[Millennia at least, yes. But he shakes his head. It's probably good that Gabriel is thinking about these things, even if it's clearly weighing the other angel's mind down. Reflection is hard. Heaven knows he's had his own struggles with it, with being honest to himself.]

And you may come to realize you've done terrible things, of your own freewill. It's a painful concept to come to terms with.

[He's done it himself. The whole ark business in general was dreadful, despite all the justifications. To this day, rainbows make him uncomfortable.

But the subject changes and Aziraphale looks startled by it. Funny though he can't help but smile, more than fond as he considers it, considers Crowley.] We did. And it's a choice I'd make over and over again. I don't pretend to know or understand Her plans anymore. After it all happened, I half expected to Fall. Sometimes I still do. It's rather terrifying. But... still more than worth the risk.

[He's come to that decision. Finishing the little plate of cake, the plate and fork miraculously make their way into the nearest rubbish bin and he shakes his head.]

So they say. Humans go to therapy these days, more than to priests mind you, but I think it's mostly along the same lines.