Self-generated pain from craving or demanding repetitive reassurances from others that never satisfy. This seems more of a clever form of anger management which seems to prolong self-hatred or self-loathing. I often hear "If he or she would do this then everything will be alright". But that is never enough and some new demand replaces the old one. This is only a form of trust that is totally dependent on action by others. Trust that exists as an expression of peace that leads to action is given by One that is True, not just trustworthy.