Expectations influence outcomes.

When a woman understands the "breakup rules" going into a marriage, she is more likely to internalize them than attempt to work around it.

There is no such thing as a marriage without "breakup rules", but you can write your own or adopt the governments.

The Gov's rules incentivize divorce. I recommend reworking them before getting married. You want your marriage to be you two vs the world not woman against husband.