I don't think the issues in modern relationships are isolated to only one sex, it's both that have some soul searching to do if they wish to "have the kind of relationship their parents had."
Look up "80/20 girl/guy dating preferences"
Ah yes the average boomer relationship, where two barely compatible people married when they were like 16 because they lived on the same street and then spent their entire life quietly resenting each other (but not quite enough to divorce and/or because they're financially co-dependent) and proceeded to take their problems out on their kids through emotional abuse. Kids who now, surprise surprise, are having all kinds of problems.
Many of the Boomers are still together, despite the social stigma of divorce being gone.
I would agree it is a different world, but I also think the stigmas of divorce back when forced many of the Boomers to work together to overcome their differences, similar to how arranged marriages work out.