The most common reason for divorce.
Because the meaning of marriage has changed. People don't get married to raise children anymore, they get married as a matter of course. As such, now that the purpose of marriage is novelty, when the novelty of the relationship fades the purpose of the marriage is lost.
It's simple boredom. It's on both sides, but it's largely women doing it and when men do it they have to pay child support. Women initiate divorce 69% of the time, typically at 45 with a 10 year old or so kid, and do so because they want to be single again.
It's part of hyper-liberalism to the point where you're liberated from all responsibility and reality itself.
There's nothing terribly scientific or sociological about the ever escalating rates of divorces.
Divorce is now is part of the throwaway society in which such character-strengths as sticking-to-your-guns or work-it-out forms no part of the psyche' of recent generations.
The modern snowflakes have changed the old adage of;- when the going gets tough, the tough get going to their own version, more commensurate with their weak character to;- when the going gets tough, run away like blue-blazes.
WHEN THE NOVELITY HAS GONE OUT OF A THING OR A PERSON, CHUCK IT AWAY LIKE A LOLLIPOP STICK.
Puedes preservar y resolver. Pero ante mi opinión existirán muchas excepciones, por ejemplo. Si tu compañero/a, te trata mal o llega a herirte psicológicamente o físicamente. Si ya lo has intentado, no vas a seguir casada/o con alguien que siempre te va a mantener en el mismo sitio. Sin animarte al crecimiento personal, social, y laboral. Antes se conservaba por la sociedad, por la familia, y por el que dirán o simplemente por el miedo a estar solo. Ahora puedes buscar todo eso y arreglarlo, y buscar alguien mejor y si no es la persona con la que estas casada, será otra.