People get married for a lot of reasons:
Companionship.Money.To feel appreciated.To have the wedding of their dreams.To feel loved.To be served … at least occasionally (of course, no one likes to admit this one).
Notice that all of those ideas have one thing in common: Each is about what my spouse can do for me, for my happiness.
Personal happiness is what the culture teaches us to seek from marriage, after all. Look at the marriage advice that’s out there.