To have Vader refer to Blythe as human was just as much a slap in the face as it sounded. She'd been trying for years to emotionally and mentally purge herself of the human traits of her world, and to be reminded that she could not escape her own bloodline made her seethe internally.
"Ah," she finally spoke when he finished. "Then I shall be. And you..." she let her curiosity get the best of her "...you made pictures in my mind once. What are your other powers, if I may be so bold as to ask?"