But of course you wouldn't want to hear about my plight.
No, the only thing that interests you is how I managed to do it all.
How did I manage to sneak half of my kind into your capital and even impersonate your own niece? I realize, now, that I had done a poor job of actually impersonating her. You can understand my reasons, of course.
I was so close. So close to claiming revenge against him, he who had destroyed my kind. I was so close to making you pay for letting us die. I let my thoughts of victory cloud my mind until everything fell apart.
I must commend you. Despite everything, I realize you can still have a heart, even if only when it suits your needs. That Twilight Sparkle will make a fine heir, one day, as will my own kin.
You act surprised. Did you really think that, after all that has happened to us, we would truly die off so easily? That we would crumble to dust after a single defeat, that we would fade away into darkness? No, we Changelings are a hardy sort. A new queen has already been birthed, and my only regret is that I cannot be there to be a mother to her, as my own had tried to do, for me.
We will return, this I promise. My race will not rest until Discord is dead, whether that be as broken stone beneath our hooves, or as decaying flesh. We will have our revenge, on a god, and a betrayer. I promise you this.
You stand there, accusing me of being nothing more than a monster and a parasite, asking why I do the things that I do; did the things that I did?
I will tell you, Celestia, and I pray to whatever gods that smiled upon your kingdom, but turned their backs on mine, that you will understand.
You ask me why I am the creature that I am?
I will tell you, Celestia:
Love.