"Why does good sex so often fade even in couples who love each other as much as ever? And why d

Does romance dull desire. What sustains desire and why is it so difficult. The contradictory needs of stability and dependability over novelty and risk.

Perel wraps up the complex nature of sex and desire in long term relationships, the increasing demands to get all our needs met in one relationship over decades. She plays out "want" vs "have" and in doing so illuminates just how elusive and ultimately implausible it is to get all these qualities met by one partner.