Rose Tyler loves traveling with the Doctor, but age begins to take toll on her. How will the Doctor live with her as she grows wrinkles and is no longer able to run like she used to be able to? And will he be able to cope with the fact that her death is inevitable, or will she have to accept the fact instead? 10/Rose AU without Doomsday.

AU post-version of "Doomsday": Rose stayed with the Doctor and they set up their new beginning. There's something different in Rose, something that she still doesn't understand. The Doctor does though and he'll try to help her. This time, he'll allow himself to be selfish. Only this time, because she's the reason. She's the main reason that keeps him going.