Jack feels practically sick. He's not sure how to cope with this new information.

He finds himself pushing his chair back and standing. He turns, covers his face with a hand, trying to calm himself.

The Doctor is the undercurrent of Jack's life. The man that changed him, that shaped what he is and who he became. The man that took him and turned his world inside out, and that he spent a hundred years looking for.

He doesn't know what to say.