How about for his friends, coworkers, and family? McCartney cared more about Cynthia and Julian than John did -- as he demonstrated by writing "Hey Jude" and half-jokingly proposing marriage to Cynthia. Lennon allowed Yoko to poison his behavior towards everyone who had once mattered to him -- and to only accept those who kissed (or pretended to kiss, as in the case of Klein, Richter, and Mintz) her ass. That's the way narcissists are.