Because she is a artic fox
She is based on a toy I had, a webkinz, named Snow White. And that is her name.
When she was younger , other kids would make fun of her because of her name (this happened to be when I was in webkinz world ) so she became a bit more hostile and don't live up to her name.

She isn't a kind , sweet, animal charmer.
More of a loney grump.