It can be scary to confront people because....

Youre not guaranteed the truth from that person. In my case my ex whose got sexually, physically, emotionally and mentally abusive. Hes a narcissist and he has cheated on me throughout our relationship or tried to he shifts the blame on me. He withholds information and when Ive tried to leave previously he wont let me. Hes isolated me from people. And in the end its him I want to clarify things for me but he cant. He cant clarify them because he will always try and put this front up. He will deny things hes done. He will lie. He looks like hes such a caring and wonderful person but hes a monster. So it makes it tough when you want to give someone the benefit of the doubt but youve come to a point you can no longer. And also when that person will say anything to keep you addicted to them. Confrontation has become terrifying cause you never know who another person is.

I don't know if they won't turn against me and try to ostracize me.

Once you have let that confrontation come out no matter what the outcome, you can never take it back

Because of their reaction. And usually it's not good.

The fear of judgement and being treated as an outcast.

They're so big and scary and mean and sometimes they don't like you and they hit you or call you a failure and then you go home and cry.

they may judge us.

they may judge us.

They can become rude

you have no idea how they'll react. Confronting them might make the situation even worse than it was before .