Narcissistic people need two dominant things: supply and scapegoats. They need someone who cares for their every need and want. This supply feeds their ego, boosting them up, laughing at all of their jokes, hanging on every word they say, and giving them all of their attention. In addition, they need scapegoats. Nothing is ever their fault, so they need somewhere for their blame to go, all the time. Everything that has ever gone wrong in their life is to be blamed on someone or something else.