[ She's so petulant Ned can't help but smile, remembering how irritated he'd been at himself for not realizing on his own ]

They are, a bit, aren't they?

[ No, what is he doing, he's not supposed to be agreeing with her! ] I don't think they can help it. That's just the way they are. But that doesn't mean it's OK to barge in and blow their cover before they do it themselves.