[She doesn't exactly look surprised when he says that, though she does laugh, ducking under a few branches with him.]

Good! I'll be counting on you, okay?

[Of course it was Hiro who broke in and saved the Bridge. For Ruby, that's not surprising at all; Hiro's a superhero who wants to save and protect people, and the Bridge needed saving and protecting.]

But good job! You're really really good at this hero thing after all, huh? But I'm sure we'll be even better together, so... next time! [Next time they'll do it together, hero partners.]