I don't think that was any kind of criticism of you personally. I think she meant it more in the sense that everyone has private thoughts that they would never share with others and that if any of us knew ALL the private thoughts of another person we'd probably find out things that would make us feel uncomfortable because those thoughts were never meant to be public knowledge. I think I'd feel uncomfortable if I could read ALL the thoughts of another person - even someone I was very close to. Even my husband probably thinks of things that I am better off not knowing about.