Rose smiles her special tongue touched one at Jack. "Oh come off it. I knew you were about to say something lewd. And I know that you knew that I knew that. I have to take care o' this daft man, cause apparently when he's alone he forgets to." She said a thoughtful expression on her face as she continued her soothing touch on her Doctor's skin. "I don't think he meant to really, but he doesn't like to look back. I think its too painful for him. Imagine you are the very last o' your kind and had to destroy them in order to save the universe. And you don't think you deserve any kindness. What would you do if you found someone who made that deed lesser by being there? And then having that person ripped from you not once, or twice, but four times? Would you want to be around people?" She asks softly understanding the Doctor as only she could.