Castiel stops eating his sandwich, and he looks at River with a curious look on his face. "What's this friend of yours like? And what happened to his people?" He wants to have a chance to meet more out there who are like himself, but that will have to be something that needs to wait for another time.

It is when he finds out what happen to her friend's people it brings out an attempt to understand her. "I'm sorry, for what happen to his people. This does not mean I wouldn't want to learn more about both him and them."