“after the first drunken hook-up” This mistake is what has changed the course of your friends life. Keep your pants zipped before marriage and this would not have happened to him. A hard lesson with life long consequences.
Men and boys need to understand that women view sex differently from men, despite what they hear the media and women themselves say. Women equate sex with love… no matter how much they say otherwise. Furthermore women believe that once a man has sex with her, he will fall madly in love and never look at another. So women spurned after “casual” sex” ( really there is no such thing) are in a fragile state of psychological distress because their self esteem is largely based on their supposed sexual prowess ( the result of sexualizing girls at an early age.) and they will want revenge of some kind. Young men need to be aware that sex is never casual for a women regardless of what she says.
Oh really? Like the wife of one of my best friends who recently got caught engaging in hookups with random men she met on ashleymadison? You think she views sex as more than just causal?
You are a bit naive and behind the times.
Many women use sex as recreation, and a means to an end. Which is just how many used it all through history.
For example, the way girls dress and carry themselves in HS and college is not exactly modest, from what I've seen, cheerleaders don't actually cheer lead anymore, but rather engage in very suggestive dirty dancing on the field and court, many are sexually aggressive, and much of their language rivals that of an army boot camp.
Obviously it is not everyone. Maybe not by a long shot. But it seems pervasive. Is all that a front to hide their true quest for love and affection?
Maybe that's true for the majority but a good deal of women aren't too different from men when is comes to sex. I'd say something like 10-20% would constantly engage in casual sex if circumstances permitted. Something like 2-5% have no interest in a long-term relationship at all.
These women were always around but fear of stigma and poor birth control stopped them from expressing it for most of known history.
Today they are expressing it without limit and getting lots of male attention. Women who require work and commitment get overlooked.
Many young women who really equate sex with love try to act the same way for attention and often get drunk to do so. When it doesn't work, you sometimes get revenge cases like this.