When a huge fire burns down Rarity's house that she, her mother and new lover were living in for a time being she goes into depression and rushes back to Ponyville for comfort, only to become supicious as to what her 'lover' was up too.....but wasn't he dead?........Based off: https://www.youtube.com/watch?v=m8L75guzMn4 Yup another one has sprouted!( And by that I mean another great Mothy song combined with mlp) :)...........Seriously! Check out the other songs if you have a chance!
Found the image on Google(otherwise a snapshot from the show itself) I added the green text though....
Note: The lyrics I used belong to MythicHunterz on YouTube: He/She is my Inspiration, Here is his/her
Youtube account! https://www.youtube.com/channel/UCqRapQ0jCKGniPE0k-3x0EA

When Discord manipulates Rainbow to a point where she ends up bullying Fluttershy, something unlocks in Shy that Rainbow never expected in Fluttershy..Revenge....and Fluttershy will take that revenge too as far as possibly hurting Rainbow dash...

After 2 nightmares pinkie's sanity starts slowly snapping to where she forgot everything from parties and sleeping on the job!