Narcissism by definition is the personality trait of egotism, vanity, conceit, or simple selfishness. Applied to a social group, it is sometimes used to denote elitism or an indifference to the plight of others. The narcissist is described as being excessively preoccupied with issues of personal adequacy, power, prestige and vanity.
This, however, is not Borderline Narcissism. Narcissistic Personality Disorder and Borderline Personality Disorder are both Cluster B grouped Personality Disorders (as relevant as that is) but they’re far from being the same thing. As is common with most Personality Disorders there are some overlapping characteristics between the two. How these characteristics present vary in severity and manifestation.
Let’s refresh yesterday’s point: Entitlement or a 'Sense of Entitlement' is an unrealistic, unmerited or inappropriate expectation of favorable living conditions and favorable treatment at the hands of others.
“ In clinical psychology and psychiatry, an unrealistic, exaggerated, or rigidly held sense of entitlement may be considered a symptom of narcissistic personality disorder, seen in those who 'because of early frustrations...arrogate to themselves the right to demand lifelong reimbursement from fate'.
Narcissists hold unreasonable expectations of particularly favorable treatment and automatic compliance because they consider themselves special. Failure to comply is considered an attack on their superiority, and the perpetrator is considered an "awkward" or "difficult" person. Defiance of their will is a narcissistic injury that can trigger narcissistic rage.
Belief in the special, exceptional nature of 'narcissistic entitlement dictates that the patient has a right to life on his own terms...Such narcissistic entitlement plays a central role in borderline pathology, since the borderline sees himself as a special person with special rights and entitlements, such that any frustration of these entitled desires tends to undermine and often shatter the patient's self-esteem'.
The sense of entitlement comes from this aspect of narcissism that since we have put such an importance on our own emotional needs, that we may expect that others also hold our needs with the same priority. Especially when we’ve invested so much of ourselves into someone else we would automatically assume that they would give the same exaggerated emotional investment back. Even demand it. And when that demand is not met, the frustration is exceptional.