This story has been riffed in Doctor and Ditzy's science theatre by Rixizu. You can find it on his user page here

Spike has been missing for three years. Why he disappeared is a mystery to everypony. What caused him to leave in the first place, and why is he suddenly back now? He's acting cold towards his old friends and won't reveal why. He's lost his love for Rarity and is treating everypony he comes across the same way Gilda did.

Opening theme for this story is: Constellations - Sound of the Aviators

Rated: Teen for language and potential sexual outcomes.

Warning: Self-harm is described in this story. If you are prone to self-harm or know someone who is and feel uncomfortable reading about the subject, then I don't recommend reading the story.

You are Anon, and you have been sent to a magical land of ponies and mythical creatures. At first, you thought you had everything you wanted. That was, until you realized you were missing something very dear. Something that consumed your thoughts until you couldn't take it anymore.

(someone made this image for me and I thank them for doing that for me)

Sunset Shimmer had no idea why everyone was taking to this new girl so quickly. What does she have that she doesn't? Besides friends? And an endearing personality? And a cute butt.

This is the first book of The Humanity Within Trilogy. Its sequel is What I've Done.

I wasn't always like this, a monster, running through the woods on an alien planet. I was once a man. I had dreams, a girlfriend, and a great job.
Then They came. In the middle of the night, They scooped me from my home, and... changed me.

Now I'm a beast, a demon the like of which the world I've become stranded on has never seen before, scraping by on the fringes of society, hiding from the natives, and doing my best to avoid notice.

After all, who could ever be friends with a monster?

Cover Image done by the very talented PaintSplotch! You can find his FimFic account here.
And here is his DeviantArt Account!
Now 100% approved by Twilight's Library!
Mad props to my prereaders:
ThatPonyWithASword.
Admiral Applejack.
JXWheeler

Vinyl knew she loved him from the time she was very small...

And she knew it was wrong.
They had grown up together.
He was like a brother to her.

But she still loved him,
And it wasn't supposed to be that way...

But that didn't make it hurt any less.

Sombra never realized this would happen.
Usually a villain is suppose to be defeated, right?
So, why did he, well...win?
Even he was shocked to see the crystal heart in his hooves. Never in a thousand or so years did he think he would pull this off; that he would actually...win.
So, what will he do now? Just rule over everyone and enslave all of pony kind? Or Perhaps kill the princess and mind control that purple unicorn and her friends? Or maybe have some common sense and figure out just how he will deal with all of this in the long run? With all these questions, he knows one thing for sure.
This is going to be very awkward.

After finding her assistant missing again during her court duties, Twilight finds Spike with none other then Fluttershy and learns that the two have been a couple for a while. After overcoming her shock, she is told the story of how the two, unexpectedly, found comfort in each others embrace...