I don't understand. 

I don't get why you are mad.

I don't get why you won't talk to me. 

I don't get why you got mad at me for speaking my mind.

I don't get why you get to speak your mind but not me. 

I don't get why I get in trouble when I speak my mind, but you don't.

I don't get why you storm out.

I don't understand what you want from me

I don't understand why you make me feel guilty when I did nothing wrong.

I don't get why I'm always in the wrong.

I don't understand you.