Roger may not want this to become an interrogation but Ariadne's a natural at them; they're her default setting. Though not completely adverse to talking about herself she finds little interest there in comparison to her curiosity for others. If asked Ariadne would say that there's nothing inside herself she wants to know that she doesn't now already. Whether that's bold talk or simple self-awareness has never really been brought into question before. (Whose fault that is, she doesn't know.)

Though her expression clearly reads stop trying to buy time Ariadne still sounds good-natured about it when she replies: "Would I ask if I didn't want to know?" She'd point out that answering a question — like he'd just done — is obvious signs towards evasion; there is the counterargument that she'd just done it herself, however, and the last thing she needs to do is give Roger an inch of wiggle room.

She's dealt with men with Roger in the past — okay, maybe not exactly like Roger, but with a few broad strokes in common. Professional thieves, professional liars — these are the kinds of people that Ariadne considers her friends and acquaintances. The main difference is that they have the decency to say flat out no to her face, while Roger's still convinced a kind of song and dance will somehow save him in the end. "You could just say you don't want to say. It'd be a hundred times less insulting if you did, you know."