Speed Racer, I have asked myself this many times. What do single people do when they have a midlife crisis?
A neighbor told me that a close girlfriend of here, who is single, is acting exactly like my husband -- but to her close girlfriends. She lashed out, alienated herself, acted so poorly even her own mom changed the locks.
My neighbor said, like me, she initially treated as an authentic problem and tried to tackle as such. She slowly realized her friend was irrational and she could not get through to her.
I too find it uncanny how the person fixates in the spouse as the source of happiness in most cases, however. I have heard this compared to PPD whereby the woman, who is severely chemically imbalanced and overwhelmed, erroneously assumes that her baby is responsible, and then either rejects or attempts to harm the baby.
I am someone who thinks this is at least in part neurological, maybe like major depression or bipolar. Just thinking out loud, maybe the affair creates a false comparison that then allows the MLCer to blame the spouse for their problems?
Also, I think we all to a certain extent have longterm and short-term grievances against our spouses. These are manageable. If MLC involves chemical imbalance maybe this becomes out of whack.
I believe I had a mini-crisis in my early twenties due to birth control pills. I wasn't married, but I ended up being very frustrated and bringing up all sorts of things with my parents. (And I was in therapy at the time.) While some of these were authentic complaints, the situation completely resolved when I stopped taking the pills. Essentially, I was unknowingly chemically imbalanced. My problems didn't somehow get "processed"; I just experienced them differently because I was not under the same chemical influence.