When you made a mistake, others will have the right to define some meaning behind that mistake?

If yes, that is what my family always did to me.

I cheated once with my partner, although I made a bad reason to breakup with him
And the guy I cheated with, has a girlfriend
He betrayed me into telling my mother about what happened to us,
He spread rumors about me, which also made my mom angry at me at the same time

After that, she scolded me. Told me I was a flirt for flirting on other boys and cheating on my ex-boyfriend.
My ex-boyfriend cheated on me, I didn't know who or when it happened,
It just happens that I didn't know about that incident and he never got caught.
A friend of mine told me that since they were classmates, she saw my ex out with someone new after a week of breaking up with him.

My life was so ****** up.
Someone wise once said, "mistakes do not define you"
We really have no right to define them badly about their mistakes
We did not know what happened. Who are we really to judge that person when we do not even walk in the same shoes as his or hers.
We have no right to be rude about them.
Their mistakes defined them as imperfect people. We all are imperfect people but remember that God loved us so much, he sees through us and our imperfections but he never judged us.