Knowing Tori, Kristiane was probably a nobody trying to make her mark by getting shots in on Tori Sinclair. Tori didn't back down, gave twice as good as she got, and Kristiane Fluer went home with her tail between her legs.
There's a Christine Dupree interview on YouTube where Christine says her only fear in filming is an opponent who doesn't feel pain, because there's nothing you can do back to her if she gets out of control.