Why did this happen to her?( a Scarlett Johansson/OC story)

Scarlett Johansson meets a twelve year old at her secondary school who wishes to be with her for a whole day and meet the cast of The Winter Soldier and a hug from Sebastian but weeks after an accident happens and she goes to see the twelve year old only to find a girl who doesn't even remember half her life

All the characters mentioned are owned by Marvel and Stan Lee
All actors and actresses mentioned own themselves
Caitlyn Burkheart owned by me
Samantha owned by me
Irene owned by me