Why do Narcissists marry if they view everyone as inferior to them?

I wasn't even married to mine~ he would tell me I wasn't good enough to marry but when we were in public at an important social gathering, he would introduce me as his wife...twisted! The narcissist does not view marriage as a bond among equals - but as an arrangement of convenience. By getting married, the narcissist merely secures a good source of narcissistic supply for the long-term. They marry for permanent narcissistic supply . It inflates their ego to have a wife ( or husband ) to brag about , and at the same time, humiliate , in order to keep reinforcing how superior they are. Narcissists are alway concerened about their image. Being "married" looks alot better to the public (in his opinion) than "not being married." He also NEEDS a spouse to "take care" of him since he is pathologically immature and unable to care for himself. He USES his spouse but never truly LOVES her.