DONNA: I was thinking… And let me finish, okay? I know I sound daft, but… I wonder how long they'll wait, Rose and Shaun and my mother. Standing there in that alley… waiting for the TARDIS to come back. What if we never do? And then time will pass. Rose will grow up, she'll have a life. She might go back to that alley once a year for old times' sake, but she'll move on. Not Shaun, though. He'll keep going back every single day. He's nice, you know. He's lovely. I hope you get to know him.