aziraphale seeing bee and gabriel happy and running away safe together was extremely important to him. it let him see first hand that love between an angel and demon is actually possible and gave him confirmation that his feelings for crowley are real and that that’s okay.
i will never get over aziraphale trying to learn french - the language of love “the human way” but not being very good at it and crowley interpreting it anyway, understanding him “but you understood me.” GOD
you can see azi start realizing what crowleys true intentions really are after the “no nightingales” line because of how important that moment was for their relationship and then has to fully turn away to cry because he knows it’s too late now but wants to be with him so badly
aziraphale not showing crowley the photo until they got back to the shop crowley was going to spend his last day on earth drinking wine w him im going to throw up
i know crowley is using this kiss as a goodbye/final plead but if aziraphale really wasn’t reciprocating it or trying to pull away crowley would’ve let go immediately.
we might not see them for another 3 years but just know when we do, in the end, they will be the happiest and safest they’ve ever been with each other in their entire existence.
thinking about azi and crowley getting an emotional hug in s3 and crowley starts crying saying “please don’t leave me again. i can’t live without you.”