Because most dudes don't understand the long game of marriage.
Most women don't either.
Once the blissful ceremony is over...alot of women don't what's next. They accomplished the main validation. Now the games begin.
Some Chicks tend to begin a power play to seize total control slowly.
It starts with he's going out too much, then it's the money, then it's the quality time with family, then it's time with her family...it keep going until some dudes break and just do whatever to keep the peace.
Then she loses respect for him and his friends see it and wonder who is the guy now?
The more he defends himself the more he sounds like a bitch. Then they lose respect for him.
This is usually around midlife crisis time.
This shit plays out over and over.
The whole problem is the reasoning.
Why did they really get married.
It's usually two different reasons but only one is really honest with why. The other wanted a fantasy.