I used to have one job, I was a mare who hunted vampire's to protect others, but most of the time you saw me, I wasn't jabbing a wooden stake in a creature from tartarus.
Normally I had my muzzle in a book, a real nerd I am. But one that isn't afraid to get their hooves dirty, or bloody in this case.
But now seeing my friend become one of them because of me- I couldn't continue my job as a vampire hunter.
Now it's my job to protect my vampiric friend from the ponies I hunted along side with, and also make sure Rainbow doesn't do anything dumb.
So now it's my job, and for some reason Rainbow Dash's too, to make sure nopony harms Fluttershy, and that Fluttershy harms nopony.