How do you know when fighting with your spouse crosses over to mental abuse?

your crossing the line when you don't treat that person the way you wnt to be treated.How do you know when fighting with your spouse crosses over to mental abuse?
When it moves away from the issue you were fighting over to remarks meant to bring you down or make you feel less than human.How do you know when fighting with your spouse crosses over to mental abuse?
When it becomes demeaning and makes you feel bad about yourself and isn't about any particular problem.
When it hurts your feelings.
When it doesn't feel right and it causes you to come on to Yahoo answers to verify feelings you already suspect. (not being a smart a.ss here, I'm serious) Your get is telling you something your mind already suspects. Keep to the subject you started talking about. Make sure both parties keep their voices at a manageable, conversational level. And stop the conversation when either of these two things change. Good luck.
Every fight is mental abuse. The word fight means to attempt to harm or gain power over an adversary by blows or with weapons, to engage in a quarrel--argue. Fighting is not good for any marriage. Seek the Lord JESUS Christ for resolutions. Be Blessed!
When they break down and cry.
when you start feeling like you want to kill yourself. when you become dehumanized and dont feel equal in anyway. when you are put down all the time etc etc