Problems are something everyone in Equestria has to deal with, big or small. Some problems have obvious answers, some don't. And sometimes, a pony chooses to deal with their problems on their own, no matter how much help they really want.
After what Sunset had done she never expected anyone to forgive her, but there was always someone willing to give her a second chance and accept her for what she was.
Derpy's father says there's a monster in the basement. He says she must never go down there or it will gobble her up. She decides to investigate anyway.