narcissist tend to get nuttier and nuttier as time goes by.
For one thing their fashion sense is off. Outdated or they dress to young for their age. or, to much make up.
It stands out the older they get.
They usually lose their support of friends, and co-workers, because they have burned most of their bridges and shafted anyone that was not 100% loyal.
Their “friendship” are superficial and expedient.
If they think you can give them what they want, attention adulation money, they will treat you like your are their best friend.
But its all based on them getting some kind of benefit.
Although, even a die hard supporter can only witness so much insanity before they do whatever they can to distance themselves from the N.
That is usually when the N. starts a campaign to smear that person character.
I am not a doctor..just read about N.