Why do narcissists abandon their partners?

Answer 1

I think the simple truth is; because you are no challenge and he is bored. Let me explain. When a person chooses someone intellectually, for their utility (whatever it may be), without emotional ties, there is nothing to distinguish them from anyone else they use similarly, no particular, preferential tie to bind them. Whatever they feel they can feel equally for anyone who fills the same need. Narcissistic personality types are frequently both charming and easily bored. When there is no challenge, and no true emotional preference, they become bored and charm someone else. Easy to do, because within certain limits of taste they are unlikely to be very particular about who they charm. In theory, if you can stop them becoming bored you can hang on to them for life...the real question is, would you want to?

Answer 2

For many reasons:

Narcissism present a false image to others (and even to themselves)- butter wouldn't melt in their mouths in public but behind closed doors they are abusive dragons. They will abandon you for various reasons; 1) one could be to show everyone that they they left you because you are the problem and not them. They love transferring the blame onto the other partner. 2) They are also afraid that their partner is going to show them up for who they really are to the world, their family and friends. They cannot have that their poor false image will get tainted hence they'll abandon you before that occurs to save their image and again lay blame at your door.

He regards and treats people as though they were objects: exploits and discards them. He mistreats people around him by asserting his superiority at all times, by being emotionally cold or absent, by constant bickering, verbal humiliation, incessant (mostly unjust) criticism, by provoking uncertainty and by actively rejecting or ignoring them. All his interpersonal relationships are deformed and sick. The longer the relationship - the more it is tinted by the pathological hue of narcissism. In his marriage, the narcissist recreates the conflicts with his Primary Objects. He is immature in every walk of marriage, sex included.