She's not buying what he's selling when it comes to Abaddon, but she doesn't call him out. She just smirks, because even she would watch her step with a Knight of Hell.

"Oh, no reason, I'm sure." She says sarcastically as she leans against the banister beside her, looking completely at ease. Which she isn't, of course she isn't - letting her guard down around Crowley is just asking for it. His look doesn't go unnoticed, but she just bares her teeth at him in a mockery of a sweet smile. "Jealous, Crowley? Don't worry, I'm sure they'll put a pen out back for you somewhere. You can have your very own dog house and everything."