Why do narcissist move on so easily?

All the sweet, long-term promises were just to keep you quiet. The narcissist had a shallow, specific goal in mind, and it had nothing to do with love or idealization. Those were just illusions.

10 Narcissist’s Nonverbal Abuse Tactics.

You Might Be Interested In Reading This On Quora:

How do I develop the patience to read books?

Do you stay in the theater long after the movie ends, or sit on a stopped train when everyone else has left?

It’s like finishing a meal—do you put the empty packaging back in the fridge after eating the steak?

Or keep holding onto a banana peel all day after you’ve eaten the fruit?

Have you ever accidentally found out that you were about to be fired?

5 Toxic Money Habits of a Narcissist.

7 Weird Facial Expressions of a Narcissist.

5 Weird Eating Habits of a Narcissist.

'Housewives' Exec Assistant and Mom of 2 Dies 'Moments After Giving Birth' to Son - TODAY.com

Narcissists move on so easily because they’ve gotten what they wanted from you. Once they’ve taken what they needed, they look for someone else who can offer something new or better.

7 Weird Phone Habits of A Narcissist.

You might have been their practice partner for a skill they wanted to learn, a place to crash while they figured out their next step, or someone attractive to show off in front of their ex. Whatever it was, the ride is over.

Moons of Uranus surprise scientists in Hubble study - Phys.org

It’s time to get off and move on.

8 Clear Signs You’re Being Used, Not Loved.

4 Things to Never Say to a Narcissist.

More King County measles exposures, including at Costco in Issaquah - The Seattle Times

No, you don’t. You got what you wanted, and you move on. There are plenty of other things you still want, and you know you won’t find them all in one place.