Someone from Up There was looking for him? This did not bode well for the demon. He wasn't scared, that was fool's errand. Concerned was more like it. Up There hadn't given him much more than a nod since he left and even less -Aziraphale aside, since the Apocalypse. If they'd taken an interest in him now that certainly meant he was doing well at what he did. Which while pleasing, meaning Down There might turn a cheek to the whole debacle, still meant he was high on Up There's radar.
Most displeasing. “Why would an angel be looking for me?” he asked, incredulously. Then he blinked, realizing fully what he said. “You aside, of course.” Crowley barely gave the fact that the other angel in question didn't feel like an angel to Aziraphale any thought. He'd met demons that hadn't felt like demons. Different worlds and all that, which seemed perfectly logical to the demon.
Then he snorted. Winchester wasn't important, he was a nuisance. Or he would be, if Crowley bothered to see him again. It seemed the City agreed since they'd not had the unfortunate experience of running into each other again. Unlike himself and Miss Harleen Quinzel. They had a propeensity for running into each other at the oddest of locales. It was almost as if the City had a sense of humor.
“Well, if it's any consolation, I know nothing about him other than he hates demons, swore my name was Azazel, and pointed a gun at me. I would think if he were of any concern, Down There would have something to say about it.... though, I haven't heard from Down There since I got here.” So who knew.