Men are not pulling their weight and not putting in any work to make relationships work, it's all on the women to fulfill his demands while she herself isn't allowed to have any.
Men who have grown up and been conditioned to believe that they are the centers of the universe and that women are therefore subservient to their interests will always end up in this catatonic state. Men are more often than not conditioned to put the interests of other men over their own significant others, seeing friendships with the same sex as a tier above
any relationships with the opposing one. This explains everything from workplace harassment to absent husbands, as you said.
These men are deluded into thinking they are in their prime forever. They often have never grown out of their high school or college fraternity highs, and think that a few tricks can get them sex -- why, then, should they settle for one when they could farm a dozen by barhopping and being a "bachelor"? Erotic pleasure supersedes any emotional sentiment, as the latter can be farmed from their friendships instead. If anything, erotic pleasure comes
before any true feelings as the former is immediate. Men are obsessed with looks, after all.
Why does Leonardo DiCaprio lust over girls under 25? Why do boomers joke about fucking young girls and ditching their wives, if they haven't already done so? Because it's all about being selfish, it all ties in with their hard pressed belief that they rule the world and don't have to share it with anyone.
These men are scum, through and through. I can only hope future generations wake up and trash them for being such degenerates, but zoomers seem to have an abundance of doormats that will likely keep this cycle going.