As someone who only sometimes attends church, I wonder why that has a higher risk of divorce than never attending or always attending. Maybe lack of commitment?

It's sad how much of a difference money makes. Ideally, money would have no bearing on love or marriage. I'd like to think that if I was well-off (or if my spouse was) and then something disastrous happened, that we would still support each other throughout.

Also, the "looks" thing is kind of surprising. Attractiveness is a binary prerequisite for dating (at least for me) but once married it wouldn't matter to me, in terms of keeping the relationship stable. What if one of you gets in an accident and is horribly disfigured or gains or loses a bunch of weight?

Lots of interesting data -- there are many other correlates I'd like to see. How do personality characteristics (BPD, narcissism, extraversion) correlate? How does constancy of morals/values correlate (someone whose values remain the same over many years vs someone who is always changing their values)?

What would be even more intriguing would be to find the subset of the population that describes themselves as having near-perfect, long-lasting marriages and compare those people to the general population. I would really love to see that.

My opinion is that most marriages dissolve when one (or both) people lose the ability (or never had it to begin with) to be empathetic toward the other person.