Depends on whether the study is from places likely to be subject to bias like the “conservative” group institute for family values that claims county level polling shows more democrats get divorced (despite conceding the accuracy of state level polling?), or more normal groups that have shown for a decade plus now that red states have higher divorce rates. Top five are:

1. Nevada
2. Oklahoma
3. Wyoming
4. Alabama
5. Arkansas

I don't know what conclusion that would give. That they jump into marriage faster? That they're willing to leave a bad situation?

I don't think low divorce rates necessarily correlates to happier people.

There's statistics about voting rates amongst single, married and divorced women in the USA. Married women are the most conservative mostly due to age skew) followed by the other two. I can't remember if single or divorced leans more liberal but there's a big gap