Something is wrong with me.
But first, as someone who has been rabidly impacted by her 43 year marriage going down the tubes following her husbands affair, I have trouble understanding the backlash to a publication that is one of the more thoughtful on Medium. Taking a hot, controversial topic and examining issues from multiple perspectives is difficult, especially when infidelity causes such pain. So, I say--Disagree--fine. But it will make you think.
About the article-- I think that mental illness, particularly when it's severe can be the stressor that contains elements/symptoms of a troubled marriage. One big example is the nose dive that libido takes-- a satisfying sex life can become quickly problematic, made worse by some meds.
Then there is an accommodation, which become a "silent stressor," that is difficult to deal with
And up to couple to see what the resolution. His listing of behaviors, the many that he left out and two week change magic and regression was demoralizing.