I just realized something interesting about myself and perhaps other INFJs too.
In the beginning, trust is easily given. Perhaps not the unbreakable trust but still, you don't suspect the other person to be capable of EVIL THOUGHTS/betrayal possibilities...such. We're cynical unless we have a reason to be.
So...once the trust breaks, there's no way to regain that sort of freedom/easily given trust...I'm always wondering if I'm right to trust the person or... even if I pretend I do or do my best to...it's just...not the same, not pure anymore, there'll always be this nagging suspicion that since I suspected someone of betrayal once, it could happen again...