Pinkie Pie is friends with everpony in Ponyville, but what if just one day Pinkie did something so destructive, so horrifying, and so scarring her friends turn on her

She then discovers a lost "friend" that has been living right under her nose to set her straight, but is it so smart for Pinkie to go without friends for awhile?

Will things work out in the end for Pinkie or will her friendship(or mind) crumble around her?