Part of you doesn’t accept that he is a sociopath (if he is) and/or wants to still believe the fantasies he mirrored for you. Recognizing sociopaths is not an exercise of the mind, but a soul deep emotional realization that the person presented doesn’t exist and never could.
The Path Whisperer
An exploration in sociopathy
it is not easy, let him have a new target, the worse is that he was not the prince he was pretending to be