In the end, Jack loves the Doctor dearly, and they will always be the best of friends (in his opinion), but they are very different, and he couldn't run after him forever as a companion. He does way too many shady and questionable things to fit quite right, and the universe sometimes needs people like that. But he does love coming to the rescue occasionally. What is life but a series of adventures? And no one knows that better than River. They really are very similar.

"They really don't. I swear if I could go the rest of my very long life without hearing Exterminate again, I would be endlessly grateful." But knowing his luck, that is almost impossible. He forgot the chill and shiver that went up his spine when he heard that tone though. Jack is technically human, although most people would say mortality was a key part of being human, so he's something else too.

"They as in whoever is responsible for us being here right now? There were more exciting moments to snag me from, that's true." Jack was crashing on Gwen's couch and then here he is. It's almost nice that it was a boring moment though. It means he's less anxious about what he has to worry about back there, it'll all come together one way or the other.

He puts his hand over hers on his chest, eyebrows furrowing. "The Library, capital L? Yeah, of course, every book ever written is there, supposedly. Is that where you were?"