Right

In the wee morning of X'mas day, she tries to put a foot into matters she knows only of one-sided, without even attempting to take a back step and listen, she just bites and doesn't let go, eventually losing her temper and started screaming.

Observe before you listen. Listen before you analysis.
Analysis before you act. Act without regrets.

I feel that you should always start off by observing every little detail. Taking an overview of the situation. After that, listen. Listen to all accounts, all points of view. Afterall, everyone will have their own perspective of what happened. And they will be blinded by their own point of vision. Only after observing and listening can you piece together a complete account. Then you can analysis.

Then you can judge.

This is not the first time she does this. Alot of times when I am trying to tell her something, after the first line, she will jump into conclusion. And once she does that she bites and doesn't let go, disregarding whatever you say next and taking it all just to twist it back to you, making sure she stands right with her initial statement.

Rats, what a way to start off X'mas.