You've been traveling with the Doctor for years, now he has a new one. You decided to forget about him , and you did. He forgot about you too, completely. There's Cybermen all over the world, attacking everyone and anyone. Cybermen are running after you, and you run away. You run into a dead-end, turning around and looking at the coming Cybermen. You see your watch that allows you to contact the Doctor anytime, and it still works. You and the doctor had something, something different… something that made both of your hearts flutter. But you wanted a future, and he couldn’t give you that, so you left, and he found a new companion.