Da desc:

Flurry sat down and was silent for almost an entire minute. The only thing that could be heard were the peepers, the waterfall, and the sound of Cozy sniffling every few seconds.
“I’m so sorry, Cozy. I had no idea.”
“Not like you would ever understand. You have two loving parents and tons of friends. You’ll never know what this feels like. You have no idea how much I envy ponies like you.”
“Why didn’t you just tell somepony about this?”
“What difference would it make? What difference does it make at all?! All I ever truly wanted was to have loving parents, so I made my own fake parents just to be happy, and now look where it got me!”
“Cozy, that can all change. Let me help you. I can-”
“NO!”
Cozy snapped and got up to slowly walk towards Flurry as Flurry backed away. Tears were already streaming down her face, her lips quivered, her voice trembled and she stuttered as she spoke.
“Forget about it, alright?! I’m a villain and everyone hates me! I’ve given you guys enough trouble and now I’ll probably never be forgiven!”
“Cozy…”
“Just leave me alone.”
“COZY, PLEASE!!”
Full story: https://www.fimfiction.net/story/504432/flurry-hearts-story-dream-of-alicornication

Twitter Desc:

And now here’s where it gets super emotional. If you were disappointed that Cozy never got any proper origin stories or an explanation for why she’s so evil in the show, this might help.

#FlurryHeartsStory #MLPFIM

Full story:
https://www.fimfiction.net/story/504432/flurry-hearts-story-dream-of-alicornication