The Knights Who Say "Squee!": On discovering the identity of the Dalish Warden.
One of her lines for such an occasion claims that, as a child, she used to break the fingers of those who poked her needlessly.
Leaning on the Fourth Wall: Due to the DLC's smaller scope, fleshed-out dialogue isn't as prevalent as it is in the base game, which means talking to her while exploring elicits nothing but a random quip from her and thus serves no actual purpose.
Lady of War: She renames one of her swords to something more feminine because the previous named disturbed her.
Locked Out of the Loop: However, if the Warden had previously mentioned that Morrigan had taken his child, it's unclear whether Ariane ever figured out that this was because Morrigan was actually the child's mother, rather than a kidnapper as she'd initially assumed.
Warden: We're not married, if that's what you're asking.