[Rock Lee does strive to see the good in everyone before anything else, ad it's easy for him to find value in virtually anyone. Even so, Namine hasn't given him any reason to truly doubt her and his faith in her ability. Her sad smile does nag at him, and he wants to help her to feel better.

Of course, Namine's joke does end up flustering him a bit.]

A-ah, no, I... I do not say such a thing often, I promise! There... there may be many people who are special, but that makes you no less special, Namine-san!