It’s not always sex first. Of course sex does enter into it.
For better or worse women are independent now.
Many women earn more than their husbands.
If they have an argument , there isn’t any financial reason for them to stay so they hit the road.They don’t have to work out their problems.Many don’t even try. At the first sign of trouble they are gone.Many times the sex comes later.
My comments about sex had to do with the social environment where sex sex sex is everything.
—...there isn’t any financial reason for them to stay so they hit the road.—
True. And why a Godless society is doomed. If money is the only thing keeping them there (and it often has been for centuries), there is not much “there” there.
That said, I think of a wedding as being given a brand new car. If you know it is the only one you will ever have, you will take good care of it and it will last a lifetime. If you think you can trade it in at will, you may treat it like a rental and trash it to the point that it is a beater in a couple of years. At least when women NEEDED the income, they made some attempt to keep the marriage together and sometimes even enjoy it. ;-)