Despite the Professor telling her she'd give her a hug Ace hadn't actually expected a hug. "Oh, so you're a hugger now?" After a slightly startled moment she'd hugged back. Things were always complicated between them but it was good to see another version of the Professor it meant there was more than the Time War in his/her future.
"I'm going to say it's you." She flicked the end of a lock of hair with her finger and grinned. "Well, you know, up to my elbows in things back home. Here it's been pretty boring."