How can someone differentiate between normal aging loneliness and the isolation that comes from a lifetime of narcissistic behavior?

As Iran not only targets but hits 3 U.S. warships, are we to believe this expensive war for Israel continues to be another walk in the park for the White House? Why does Trump want to mirror Putin's prolonged disaster situation in Ukraine?
Why might covert narcissists ignore or dismiss the emotional needs and well-being of others, like not asking about your health after an illness?