The Destiny of Three

Having been separated for a whole year because of the Master the Doctor and Rita are back, their relationship now stronger than before, with Martha no longer aboard the TARDIS the Doctor and Rita have been left to travel in the universe alone. That was until they met Donna Noble for the second time. Planets mysteriously disappearing and timelines universes being broken from every corner some one must have been doing this on purpose to allow the ginger human to cross the Time Lords path or is it all just destiny?
Doctor x OC

*I only own my OC (Rita Stone/the Stone) and her story line. I do not own Doctor Who or any of its characters. All original ownership goes to the BBC.*