Oh Matt, Matt, falling for the stats game again.
Now, lets think about this.
If one is traditional enough to get married and not live together (as yours and my parents did) chances are, they are also traditional enough that they will stick together through all the shit that normal, sane, human people would throw the others ass to the curb. Hence, people who live together prior are less likely to be walked on in a relationship, or at least know when to get the fuckout.
The few crazy people I know who get married and didn't live together are also the people who wound up having affairs when they were 40, going though marriage counselling, hating each others guts and being generally miserable unil one or the other fortuitously dies.
Now Matty, Maybe your folks are the one in 10 million couples that would do it all over again the same,but though my folks were no where near worst case described above, my momma always did tell me that any woman who gets married is a woman with no self respect.