I had a very close freindship with somebody I now realise has a narcisstic personality disorder.
I always kind of knew her behaviour wasn't quite 'right' and many people had warned me off her. I was also aware that she always had to dominate conversations, had a undeserved sense of entitlement (i.e. parks wherever she wants) and most tellingly had a whole series of broken relationships but for some reason I always forgave her or ...