I find it to be true for myself, I'm always thinking that people are lying, once our trust is broken it is hard to rebuild, and I think we can never full trust again, until the trust that is broken is rebuilt. I also think it is in a way, a defense mechanism, not letting us close enough to people to be hurt as badly as we have been.
Sadly, I have found myself lying, not for noble reasons, but to protect myself from the truth, to deny what really happened to me. I have hurt people by this lying, and I am truly sorry for that, but I wish people could sometimes understand.
scott