What did you do?

"....mummified human skin and discarded dog hair."

"YOU BITCH!" 

At Xue Ning's words, Zhou Yu let out a war cry and launched herself straight at her. Normally, Wei Yan should have been holding her back by the hand, but he was so shocked at the savage description in Xue Ning's words that his grasp on her arm lapsed for just one tiny moment, enough for Zhou Yu to slip out of his hold.

Xue Ning narrowly dodged her outstretched nails that were out to gouge her eyes. She quickly ducked (finally her lack of height was good for something) and then headbutted her in the chin.

Zhou Yu stumbled, but rage kept her standing and she used this chance to wrap her fingers in Xue Ning's hair, pulling it as though she wanted to render Xue Ning bald. 

So of course Xue Ning had to return the favour. Luckily, Zhou Yu had longer hair, which meant it was all too easy to reach up and give it a painful tug, wincing as her shrieks assaulted her ears.