Showing signs of affection is beneath them.

Body language experts have found that narcissistic partners are those that walk in front of their mates - often leaving them behind in a passive aggressive and subversive indicator that the mate is not important.
The narcissist also engages in Non-reciprocating body language, where the mate is often very affectionate and touchy feely with the narcissist while the narcissist remains guarded, closed off, self absorbed and cold.

Narcs are emotionally distant and detached. They will request you to be present for every event they partake in but only for a reason , "to take their photo" of whatever it's they are doing. They couldn't care less if they uttered one spoken word and expressed one drop of emotion. Everything they do is with their best interest in mind. Should you request a family photo with them they will look in the opposite direction of the camera. Should you wish to have a family vacation they will not help prepare days in advance to pack, secure the hotel and make the proper payments, or even discuss dates and times needed for scheduling but will when the work is finished hurry and jump in the car, put their heads back w/o communication/conversation, pretend as if sleeping or totally oblivious to the world around them and bring with them their lil overnight bag forgetting this was a trip for the family disregarding what the family needs to have prepared and packed. As for their body language it truly speaks volumes.

Narcissists are the least romantic individuals unless you're in the initial love bombing stages in which they try to portray themselves as loving just long enough to win the target over. Soon the mask falls and the cold , shy, calculated behaviors come aboard. Narcissists do not know how to show love, as they repress their emotions. They do not support their significant others and will not show any unconditional love. Attention is obsolete with targets feeling as though they are alone yet in a relationship. Ever walk with a narc and have them walk in front or behind but never side by side. Try shopping with them and have them run off into aisles, hide in bathrooms, or simply walk away from you the second you enter the store. Try showing affection to a narc and it will go unanswered.

They are like sponges the more you give the more they take but they never reciprocate. Showing signs of affection is beneath them. To them romance and love is not something to truly hold near and dear to their heart. They couldn't care less. They feel the common man or woman is mislead into thinking this is the norm , but as we learn narcs are far from the norm....