poor kitty. I'd say she was just in there so she was easily accessible when you came to pick her up. has she ever been boarded before? She could just be a bit traumatised by the whole experience..cats can be a bit funny if their routines are broken. At least it's nice to know she missed you?! (unlike our idiot dog who we boarded for about 10 days a couple of christmases ago, we came to pick him up and he acted like we'd never even been gone! Lol)