Why do some cultures believe that cheating and beating is the only thing that ends a marriage/relationships?

I'm originally from the Dominican Republic and I never understood how down there people only break up or divorce when one of the party cheats or puts their hand on the other. its like they dont comprehend the concept of...

  • toxic relationships
  • mental/emotionally abuse
  • distrust/paranoia

and many other things that keep a relationship/marriage going. I mean its like, again, if they are not cheating (or suspecting it) or putting their hands on each other then they will always be willing to take and put up with others shit. is like why are some willing to work this way? is their physicality the only thing that matters to them? do they not know that the mind neurology, feelings and emotions take damage as well?

Why do some cultures believe that cheating and beating is the only thing that ends a marriage/relationships?
Why do some cultures believe that cheating and beating is the only thing that ends a marriage/relationships?
Why do some cultures believe that cheating and beating is the only thing that ends a marriage/relationships?
Post Opinion