[he laughs, though there's a note of long-suffering in it. He knows he's being kind of pathetic, especially when she ruffles his hair like he's a little kid (or a pet......)]

That's not why I'm nervous. [though her reaction's gone a long way to calming him down regardless. He catches the hand she'd been petting him with and pulls it away, but briefly gives it a squeeze before he lets go.] ] Let's just say it's a silly human thing. But you shouldn't worry about me either, you know.