The narcissist appears at the optimal time. A grieving family is destroyed over the death of a parent and is in desperate need of emotional stability. A spouse is torn apart by divorce and is starved for normal amounts of positive attention. A friend is destroyed by the betrayal of another and is craving a close relationship for support.
Now, enter the narcissist. Hidden by a veil of perfection, the narcissist immediately endears themselves to the needy person (pets included) and navigates any personality differences with ease. They are charming, caring, generous, kind, and seem to have it all together. They anticipate the needs of others and come willingly to the rescue without complaint.