[Societal Gynocentrism] HYPERGAMY (Def. 4.0): is an evolved social dynamic. It is the behavioral extension of biological factors. but Hypergamy is a sexual strategy exclusive to women. It's the behavioral manifestation, complementary to women’s hormonal and biological realities. Hypergamy at its root level is about the most efficacious, pragmatic, means of women becoming fertile, with the best genetic breeding opportunities, and simultaneously pairing, in the long term provisioning opportunities, available to a woman. There are factors and circumstances that can circumvent Hypergamy, and there is nothing deterministic about it. Yes, Hypergamy is often ruthless, but resigning oneself to binary extremes about it gets men nowhere.

In general: Women are "Hypergamous", Men are "Hypogamous". Because you've rarely seen a woman marry someone under her own social status/ambitions ("it's not sexy").
In a feminine-primary, gynocentric social order, it is women’s interests, that define what is ‘correct’ discourse. We read all the time about how western (millennial) society, has become overly PC (politically correct), but I would argue that we are overly female correct (hence Gynocentrism). When women are afforded unchecked power, their first imperative is controlling men to accommodate the Feminine Imperative (survive+have sex +descendance with best mate available+ secure provisioning for self+babies). Women’s Hypergamous interests influence, and dictate legislation and political discourse. It may not be something most men want to consider (Male Imperative: to win through rules/competition to satisfy the Female Imperative). Most guys in the sphere are only focusing on women they know personally, but there is a larger social narrative, that is inspired by women optimizing Hypergamy.
As societal impediments (both economic and cultural) to the recession of binding monogamous relationships deteriorate, the validity of this theory is being rediscovered to the chagrin of men in the trenches and to the delight of the new social engineers up in the towers.

Her instinctual desire to discard her current mate with no feeling or remorse when the opportunity arises to latch onto a subsequent mate of higher status due to the hindbrain impetus to find a male with the best ability to provide for HER OWN offspring (already spawned or yet-to-be spawned) regardless of investments and commitments made to her current mate. She is hardwired for this. By nature. The last 4 years don’t matter.
Hypergamy can make a woman forget anything. Humiliation. Morals. The emotional well-being of her children.
Hypergamy doesn’t care if you “never saw it coming.”
Hypergamy doesn´t care if you don´t agree with Machiavelli: the end justifies the means.
Hypergamy doesn´t care if your male transcendental moral is offended by female pragmatic moral.