@Gundog @SuperSnekFriend @synapsid I once read a (possibly apocryphal) story about some reporter doing a story on some European village with an incredibly low amount of total divorces over the years.
The village's solution was: when a couple wanted a divorce, they had to live together in a special room that only had one chair, one table, one fork, one plate, and a small single bed. They would have to share everything, cooperate, and sleep cuddled very close together. If they passed a month living in those tight quarters and still wanted to divorce, the church would grant it. At the end of the month, nearly every single time, the couple left the room more in love than ever.
Modern society intentionally gives troubled couples huge numbers of "outs" to a marriage, mentally, emotionally, or physically. There's no societal or social pressure to "make things work;" you can just lose yourself in your hobbies, your job, easy cheating on a silver platter, and never have to face your spouse and communicate to work things out. If something gets hard, you can just quit, and society will applaud you rather than shame you.