I don't think we think like approval/disapproval. NTs are more obsessed with approval than us and that's how we can be odd.
But you do think about that? I mean, in terms of approval and disapproval — even if it’s more like a score.
At some point, they may break down emotionally. You play games with them, and so do others who do not like you. That may make them unreliable.
You might be mixing up being ‘untrustworthy’ with simpler misunderstandings. Something along those lines. If you have difficulty communicating your boundaries, you may appear "nice", especially if you are a shy person.
Because they can be unpredictable. They cannot be trustworthy. They can be broken easily. People feel insecure around those people whom they cannot trust.
I don't think we think like approval/disapproval. NTs are more obsessed with approval than us and that's how we can be odd.