This video answers the question: Do narcissists deliberately cause romantic partners to be jealous?
Narcissistic personality disorder has a number of characteristics and it's an official diagnosis in the Diagnostic and Statistical Manual (DSM). It's different than grandiose and vulnerable narcissism, which are constructs that are studied. NPD has symptoms like a sense of entitlement, having fantasies of success, manipulating other people, being arrogant, and lacking empathy. Grandiose narcissism a lot of the same characteristics as NPD. With grandiose narcissism, we would also see social dominance and assertiveness. One way we could think about it is when we look at the term narcissism, somebody who has grandiose narcissism would probably appear narcissistic to most people right away because of that arrogant behavior and being condescending. Vulnerable narcissism isn't really captured well at all by the mental disorder NPD. We see characteristics with vulnerable narcissism like insecurity, having shame-proneness, being hypersensitive, sad, and shy.
Tortoriello, G. K., Hart, W., Richardson, K., & Tullett, A. M. (2017). Do narcissists try to make romantic partners jealous on purpose? An examination of motives for deliberate jealousy-induction among subtypes of narcissism. Personality and Individual Differences, 114, 10–15
