I think it depends. There is no 'typical narcissist' response; that's a myth of Freudian psychology that people will correspond to behaviours or stages.
A cerebral narcissist seems to have received their 'narcissistic injury' at such a point in psycho-sexual development that they will persist over and over to get attention, be important etc...but automatically expect to be repelled and despised sexually.
One of my close friends who is married to a psychiatrist-diagnosed narcissist is actually quite a horrible bitch after three years of first being her friend and confidante, then seeing her in action: she cares about nothing except the money and attention provided by her husband.
She spent two years trying to convince me how abusive he is, but I spent several years in the uk working with victims of abuse, and the picture didn't fit.
Compensatory narcissism I think it's called.
Personally for my own experience ( and dare I say karma ) we should treat everyone with respect, withdraw from abusive relationships if it seems appropriate, but frankly if we stay in them over time it's our own responsibility.
ie. don't date sick people
( once you realise they are sick ) unless you intend to tend to sick people...