! What first struck me how Aziraphale seems to be so hung up on the ineffable plan that it makes him cold but then I'm not sure whether he is so unaffected at all. It's interestingly ambiguous, and the same goes with his affection for Crowley since he is quite tender and offers comfort but still there's something like detachment in the way he treats Crowley (at least I think so, especially in the way how he just disappears when Crowley doesn't want to continue the Arrangement but then again it could be hurt feelings? idk, I just like how it has many possible interpretations!)

And speaking of interesting choices, I haven't often seen Crowley portrayed as you did here, like falling was a conscious decision for him, but I really like his passionate speech about it. ("you haven’t any right to come in and take away the last thing your blessed father ever gave me––” poor him!)

Some of my favourite lines are

"Crowley felt overwhelmingly nauseated just thinking about it, the exquisite arch of the man’s abused tendons, the Cross behind him a terrible parody of his mother’s embrace." (such a powerful image)

and

"but somehow, in the night, all the wine had been turned to water."

oh! That line just says so much; that Aziraphale took care of Crowley even when he left but also because duh Jesus but with him dead the brief era of miracles was over (and also the brief era of the Arrangement but at least that comes back).

But thank you, secret author, for a wonderful gift!