I think one of the biggest problems in the western societies that work against marriage is lack of structural and ingrained support mechanisms dedicated towards keeping two people together. The emphasis seems more on individual freedom > Interdependence and synergy. There are no formal support structures (that I'm aware of) that focus on encouraging and guiding two individuals towards effective and synergistic problem resolution instead of playing a blame game and working out who is right and who is wrong. Perhaps our next point of progress will be the foundation of these?
It can be said that in the past people took marriage more seriously because there was little choice for them otherwise. Now choices are abundant so people are less hesitant about putting in more work, but perhaps these choices need to be scaled back and offered only after a certain amount of progress towards mandatory synergistic problem resolution had been made?
Don't cry, don't regret and don't blame
Weak find the whip, willing find freedom
Towards the sun, carry your name
In warm hands you are given
Ask the wind for the way
Uncertainty's gone, your path will unravel
Accept all as it is and do not blame
God or the Devil
~Born to Live - Mavrik~