“Narcissists hate to fail or lose, so they will do what they can to maintain some connection if they didn't make the choice to end it…They can experience narcissistic injury when rejected by a partner and have difficulties letting it go or healing from it… they may stay connected [to exes in order to] have access to valuable resources. They also have inside information about their exes’ vulnerabilities and weaknesses that they can exploit and manipulate which gives them a sense of power and control.”