If we look back to how our parents were able to not only stay married, but what really were 'some' of their best key tools...we see a very different concept.
Respect was a number one.
The old saying 'familiarity breeds contempt', comes to mind.
Marriage needs to have a few boundaries, that are never crossed...so each person stay's a person.There is no need to do 'everything' together even in the home.
It is in speech, actions and if used correctly a marriage will gain in trust and love.There will be no need to do all the other little 'gestures' that people think
seem to hold this life long union together.Of course love is the important part of a marriage, but when talking about a life long commitment,something else needs to be the glue that keeps those two people together, and happy.
It would be great to think Love is all you need, sadly it's not the primary one,this is where people have come undone.
Two people need to know they can depend on each other during the hard times, and of course good ones will follow...but also they are good friends, and companions.We can only love and like someone for the long haul, when we respect them.There is plenty of info (even on Google) on what respect means.