My family lies by omission all the time

This is essentially a vent, not really an IIN.

I have always described my family as "shady". They've lied to many people as I stood beside them, knowing that they're lying. As a kid, I usually looked up at either of my parents and gave a confused look, or blurted out the truth, speaking before I thought about it.

As time went on, the lies seemed to be more and more drastic. For example, at 14 years old, I found from my mother's Instagram page that she was cheating on my father. My sister and I decided to show him the images, and in a desperate attempt to hide it, my mother tried blocking herself from the device.

Months later, she left and took thousands of dollars. She didn't tell my father that she wanted a divorce or that she wanted to leave. She just... left.

From there, my father began dating women as a rebound from her, and started dating a wealthy southern woman. She and her son went from North Carolina to New Jersey to meet my father. I soon found out that my father did not love her and actually found her physically repulsive, but didn't tell her because she was wealthy.

A couple weeks went by and I was disgusted by how nobody in my family told the woman how he truly felt. Neither of my sisters batted an eye. I decided that keeping it from her was wrong, and during a drive to high school, I let her know how he felt.

She didn't have a clue that he was gold digging, and was very thankful that I told her. She thought that I was so unwilling to talk to her was because I hated her, when the truth was that I didn't want to be part of a lie.

Finally, there was a day where our family dog passed away after running into the street. My mother loved the dog, arguably more than her children, and would be devastated by the news. Nobody told her about it, and I had to be the one to send the message.

TL;DR: My mom cheated and didn't tell my dad before she left, my dad was gold digging with a woman he found ugly and nobody said a thing, and my mom's dog died and nobody told her.

I hate how prone they are to lie or not say what happened. I always tell the truth and I'm starting to be hated for it. I'm not wrong for telling people the truth, am I?