Cadence grimaced as she stood up next to Shining Armour, Celestia had just finished shaking the goo off her body. Shining Armour asked “Are you okay?”

Cadence sighed “I’ll be better when this is all over.”

Celestia trotted over to them and smiled “Well now this is over we can the wedding underway. We must show the fact the invasion hasn’t rattled us.”

Applejack galloped in panting “We have a problem!”

Cadence asked “What is it?”

Applejack shouted “Twilight’s gone, she left a letter behind in her room!” Cadence galloped out of the massive hall to Twilight’s room. Twilight’s friends gasped as the Alicorn knocked the doors off their hinges. She lifted the letter, she could see the tears all over the letter

To my friends, my brother and Princess Celestia

I’m leaving. I’m sorry for all the harm I caused, I’m sorry for ruining the wedding rehearsal, I’m sorry for being bad friend and I’m sorry for being a bad student. I don’t expect forgiveness, I just wish you all the best of luck in your lives.

From your friend, sibling and student Twilight Sparkle

Celestia and Applejack entered the room with Luna and Shining Armour just behind them. Cadence passed the princess’s the letter. Luna and Celestia read the letter, Luna roared “What the fuck did you all do while I was sleeping?!”

Celestia, Shining Armour and Twilight’s friends gasped at the language. Shining read the letter and was about to cry. Cadence asked a sickly sweet voice “What happened while I was impersonated?”

They explained the events of wedding to her, Cadence asked in the sweet tone as before, she pointed at Celestia and Twilight’s friends “So you’re telling me Twilight ran off because her friends and mentor didn’t support her?”

They nodded, Cadence’s let eye twitched then she roared her entire body setting on fire she turned to Twilight’s friends “ARE YOU FUCKING KIDDING ME?! TWILGIHT WAS YOUR FRIEND AND YOU CAST HER OUT, FUCK YOU ALL” Cadence turned to Celestia shouting “AND DON’T GET ME STARTED ON YOU! YOU ARE AN ONE THOUSAND YEAR OLD IMMORTAL ALICORN, YET YOU CONTINUALLY FAIL TO LEARN FROM YOU FUCKING MISTAKES. YOU NEVER LISTEN TO ANYPONY ELSE DO YOU?! YOU DIDN’T LISTEN TO YOUR SISTER WHEN SHE WAS HURTING, YOU DIDN’T LISTEN TO SUNSET SHIMMER WHEN SHE NEEDED YOUR GUIDANCE AND YOU DIDN’T LISTEN TO TWILIGHT WHEN SHE KNEW SOMETHING WAS UP! YOU NEVER SIT DOWN, YOU ASK EVERYPONY TO CALL YOU CELESTIA BUT WHO IS CELESTIA, SHE IS NEVER AROUND WHEN SHE IS NEEDED! WHEN YOUR SISTER WAS SUFFERING ALL SHE SAW WAS THE PRINCESS, WHEN SUNSET WAS ABANDONED AND DISCARDED IT WAS THE PRINCESS WHO DISCARDED HER, WHEN TWILIGHT RAN AWAY IT WAS THE PRINCESS WHO HAD HURT HER NOT CELESTIA! CELESTIA IS LOCKED AWAY IN A CAGE TRYING TO GET OUT AND FIX HER MISTAKES BUT CAN’T BECAUSE AS SOON AS SOMETHING GOES WRONG THE PRINCESS TAKE CONTROL AND RUINS EVERYTHING!”

Cadence stormed out of the room, everyone save Luna was stunned. Luna shook her head and trotted out of the room. She trotted down the hallway, a few royal guards nodded to her as she past, she nodded back as the continued through the hallway. She heard Cadence sobbing behind a door, she pushed the door open and trotted into the room.

Cadence cried out “Leave me alone!”

Luna frowned “We art not our sister, we will help thee please don’t push us away.”

Cadence whimpered “Twilight’s gone, she was such a precious little pony. I remember her first birthday, she was such a cute little foal. I have kept a photo album of the time we spent together, it’s under my bed.”

Luna smiled “Will you show us?”

Cadence smiled weakly “Okay Auntie.”

Luna trotted over to her Cadence and wrapped a wing around the smaller Alicorn as who was pulling out a book with her magic. Cadence opened the book to page with Cadence and Twilight chasing each other, then another with the pair of them throwing snowballs.

Cadence began crying “She was so innocent and now she’s gone!” Her cries soon turned to wails as her tears flowed like a river. Luna hugged her niece as her niece cried on her chest, the book fell to the floor. Luna looked out wondering where her wayward saviour was.

Author's Notes:

Cadence loved Twilight like she was her daughter and then later sister so this reaction makes sense.