You know it's never fifty-fifty in a marriage. It's always seventy-thirty, or sixty-forty. Someone falls in love first. Someone puts someone else up on a pedestal. Someone works very hard to keep things rolling smoothly; someone else sails along for the ride.

This quote means that in a marriage, one person is usually more invested than the other. One person might fall in love first, put the other person on a pedestal, and work hard to maintain the relationship. On the other hand, the other partner may not put in as much effort and instead enjoy the benefits of the relationship. Ultimately, the two sides are unequal, with one putting in more than the other.