No matter how close that moon was he wouldn't actually have left. Crowley had been mad enough to think he would leave, furious enough to say it and irate enough to storm away but something would always have held him back. He would have gone off on his own for a few hours, cooled off, and come sauntering back to try again. It's not like he could actually forget Aziraphale. They had been friends since the beginning! His best friend...

To hear those words echoed back to him stopped him cold in his tracks.

"Are you asking me for forgiveness?"

No, hold up... Let him drink that in for a moment. An angel asking a demon for forgiveness. The balance of things was upside down. Aziraphale never asked him for things like that! Hey, Crowley get rid of this stain? Crowley... are you going to finish that dessert? Crowley, I need a rescue because I've used too many miracles this month. That was the way their relationship worked. He didn't know how to respond to this!

"Who... who pulled you to this world?"

It was the only thing he could think of to set the balance right again. He could find and punish the one who kidnapped Aziraphale.