The Ghost of Christmas Present
Christmas was the first place he ever took her. Where they had first been together, looked into each other eyes, held hands and smiled like the whole of the universe was safe as long as they were together.
So many goodbyes, they had had. Jumping into the dark to face that unknown, the fear itself, the idea of never returning, trapped in the end of the universe. Unexpected, heart-breaking, empty goodbyes over white walls, with tears that wouldn't come or stop. Sentences that never ended, while supernovas burned in an attempt to make it right, to make it clear, to finally say it. Walking away knowing that had given her more than he could actually give, accepting that he would never be enough for her, and that she deserved more, much more than a half-life. He had to face that, he had to walk away, knowing that the words he chocked, that he feared to say out loud, where robbing him of her forever, for her own sake.
Still, he couldn't stop himself from coming back again, from looking at her one last time on the eve of being a new man. And even with a new body and a new mind, Rose Tyler's smile was carved into his hearts, an painful reminder of all the love he could never have, still strong enough to keep him away from any other person. Still a ghost in his eyes when he looked back at Kazran, thinking about her and all those days he couldn't undo.
All the choices he could never make, and would always regret.