Dear Doctor,
You'll never read this. That's what everyone tells me, anyways. But if I know anything, I know you, better then you even know yourself sometimes. And I know you're thinking about me. So maybe this letter will find you by sheer willpower.
I know I'm thinking of you. I can't remember a moment I haven't. I dream of you too, every night. I dream of Daleks and Slitheen and blue phone boxes that are bigger on the inside and wonderful planets filled with wonderful things- and you. You're always there, piloting the TARDIS, pointing the sonic screwdriver at rogue aliens, or just holding my hand. You always used to hold my hand.
I hope you dream of me too. Do Time Lords daydream? Do I ever take priority over the horrors of past lives, a pink and yellow human girl who loved you so? I never would have asked you these questions- but I'll never see you again. I can ask anything I please.
Do you remember when we first met? Old you, with the constant leather jacket, and the ears. You didn't want me to come with you at first, I don't think. But you did ask at the end of the day. I guess I grew on you. Certainly you grew on me. You're the most important person in my life. Then, now, forever, always.
After deliberation, I've decided it must be hard for even a Time Lord to find the time to reminisce old mates. You have planets to save, and invasions to stop, and other girls to meet. So think of me when you're flying the TARDIS, when you look to the left and whoever's there isn't me. I hope I cross your mind when you hear one of Britney Spears' "Traditional Earth ballads". Maybe, when you see smiling dolls dressed in cute '50's dresses, an image of a laughing blonde will appear. When you watch a game show, when you go ice skating, when you eat chips, when you speak, when you move, when you breathe; Think of me.
Because that's how often I'll be thinking of you.
My heart aches for you. And while you are my greatest regret, I somehow don't regret any of it. Despite the tears, the pain, and the heartache, I would never change a thing. I'd rather have that short, wonderful, brilliant, fantastic time with you, than spend a lifetime without it.
I love you. I'll always love you.
Love, love, love, love, love,
your Rose.