Fake and fraudulent or unconsummated marriages: homosexuals in marriages of convenience
Effectively, an annulment versus a "divorce"
Or are these separated spouses who have long ago gone their separate ways, and they just don't answer survey questions about their affairs?
Almost 1 in 3 Married Adults Didn’t Have Sex Last Year—Here’s What a Sex Therapist Wants You to Know
Is marriage really bad for your sex life? Experts break down the latest sexless marriage data and what couples can do to stay connected.

I wouldn't have any strong opinions, but the mainstream media keep telling us that people who are having sex are not having sex, which is obviously a lie.
The fact is that “sex therapists” actually exist and work as licensed professional prostitutes in formal mental health settings in many states, while “pimps for preachers” at many local churches insist on the social validation and acceptance of every imaginable line of work or profession or occupational trade, licit or illicit.