My thoughts are that MLC is either an excuse for poor behavior and self entitlement with no restraints , or its an undiagnosed Histrionic personality disorder.
I do not believe in it because it is just a theory. Cluster B Personality disorders is where it closely aligns to.
I think it is just one of the stages of adult growth that we cycle through.
As we transition from the gathering years to the next stage.
It happens to be at a point where our hormones change , our bodies are no longer capable of doing what the mind remembers it could do. This is also the time when the torch is passed from the previous generation to the next.
Most people will experience depression for 6 to 8 months and work themselves out of it, reflect and carry on and enjoy the next cycle of adult growth.
Some though come out of this depression feeling that they paid their dues now it is their time. So the selfishness takes over. And off they go to do and get what they want.
Then there are a few who come out of this with their life long undiagnosed cluster B Personality Disorder in full control.
That to me is the MLC.
The issue I have with it is that people will excuse away so much poor behavior by labeling it MLC when it really is someone doing extremely selfish and hurtful things because they feel they can. And when they are given the excuse of oh MLC. Then they just feed of being enabled.
And the LBS excuses it away because they do not want to deal with the reality that yes the person they love can actually be a hateful , hurting person who really does not care at this point in time the damage they cause.
Then there are others who realize they do not like their spouse. So they take it out on them for as long as the LBS lets them.
Flowers always make people better, happier, and more helpful; they are sunshine, food and medicine for the soul. unconditional love is awesome!