All this in order to weaken her defences and to lay siege to her disintegrating nerves. So subtle and poisonous is the narcissistic variant of sadism that it might well be regarded as the most dangerous of all. Luckily, the narcissist's attention span is short and his resources and energy limited. In constant, effort consuming and attention diverting pursuit of Narcissistic Supply, the narcissist lets his victim go, usually before an irreversible damage occurs. The victim is then free to rebuild her life from ruins.
Hate is the complement of fear and narcissists like being feared.
It imbues them with an intoxicating sensation of omnipotence. He nurtures his ill-repute, stoking it and fanning the flames of gossip. It is an enduring asset. Hate and fear are sure generators of attention. It is all about narcissistic supply, of course - the drug which narcissists consume and which consumes them in return.