Mark had never met a narcissist, let alone fallen in love with one, which is why he reached out to the r/narcissism subreddit seeking support. The 29-year-old, now the owner of a car dealership in Michigan, was distraught over a long-term relationship with Lena, a woman five years his junior. A friend suggested she might have narcissistic personality disorder, the hallmarks of which being grandiosity, lack of empathy and a need for constant admiration (something her behavior seemed to confirm).