This article was more trying to bring awareness to the kinds of thoughts a man might have if he really just didn't love his wife (either he never did or he lost it). Most men seem to think that marriage = suffering. But that's not actually true if you find a solid partnership.
We were all raised badly (or at least most of us) and therefore struggle to find happy and fulfilling relationships. If you can look at your relationship as a mirror, instead of blaming your partner, it's actually meant for personal growth. I wrote about it here:
https://medium.com/long-after-the-thrill/relationships-whats-the-point-c680f6671919