"Yes, that much... I knew about..." He knows that she's a science partner of Fenton's who turned out to be a FOWL agent. While he got the inkling that Fenton might have a crush on her, he had no idea they were an actual item! "So you're also dating partners! Whaddya know."

He does get more confident as they talk about his knowledge, and he tries to prop himself up on a hurdle.

"You could say that! In fact, I happen to have appeared as Darkwing Duck himself in a movie about him! ...Which was canceled before it could be released or even fully edited, but still. It counts! It's a role that I've practically prepared for my whole life...!"