it’s hilarious how polite and proper aziraphale is with everyone except crowley. like his inflection is completely different talking to anathema or gabriel compared to when he’s talking to crowley. with crowley he’s always very enthusiastic or expressive, or whiny or irritable or passive aggressive. it’s literally Bitchiness As Intimacy
The Fact Is that aziraphale feels safe and comfortable being himself around crowley. he can be very dorky and excitable, and he can be in a foul mood, he can roll his eyes or be irritated with crowley and it’s okay, because crowley isn’t gonna freak out about it and give him a long lecture about how unbecoming it is of an angel that basically amounts to reminding him how inadequate he is for feeling things. he’s just gonna give him a Look like he does in the diner when aziraphale says “do you have any better ideas? or one, single, better idea?” bc he knows aziraphale is just being petty.
like i do love thinking about how aziraphale seems to feel safe expressing himself in excited and positive ways, i just really love how obviously aziraphale lets his guard down and lets himself be imperfect around crowley