What behavior of a person makes you feel that you can't make friends with him?

Someone who cheated me maliciously made me feel that I couldn't make friends with him, because most of them just used me, and he was always thinking about how to sell me. It is dangerous for such people to make friends with him, and they can't leave him any residue.

I can't think of any reason to make friends with such people except stupidity. In my understanding, friends are honest with each other and will not cheat each other, although there is a saying that they are not afraid of being used, and they are afraid that you are useless. However, useful people don't want to be used, let alone cheated by friends.

The most important thing for friends is trust. When your trust is broken, the original intimate relationship is gone. Why does everyone have to wear a smiling mask to be friends? It's best not to be friends, but to be acquaintances. Of course, this involves money, even if it is enough to call the police, but if it is cheating on feelings (not just love, but also taking care of something), the police will not file a case. So all you can do is stay away and be friends.

People who have cheated themselves may choke when they meet again, so how can they become friends with him? Of course, if you are a business partner, take risks and have the courage to be cheated again, it is still possible to talk about cooperation with him, just to avoid deep friendship.

I once had a colleague. I thought we could be friends, but after knowing that she had been lying to me, I gradually moved away from her, and now I seldom contact her. I feel from the bottom of my heart that maybe we just have different values, and I can forgive her for that, but I won't let her appear in my world again.