Sounds like you need to write a god awful song, and make millions of dollars.

No no... I don't want to look like a HUGE faggot. I just want to let her know how I feel, but in a brony kind of way because she said, and I quote "I want to be the derpy to your doctor whooves" (as I am a whovian)

tell her you want to bring her back to your stable and she can ride you like a pony.

Dude, that won't work. I am a big guy, and, lets see, if she lost another couple inches in height she'd be a midget.

sizes don't determine love.

I would rip her in half.

Rip her in half then.

But then she would be dead, because humans dont regenerate like Pinkie Pies do.

Try not to rip her in half.
but seriously, you should be like, I'm completely and utterly in love with you now lets go back to my stable so you can ride me like a pony,

You are a sick fuck you know that?