Dropping knowledge again. Kids, take notes. Sadly, this man is right.

i think it happens over time. they become that way beause of their past experiences. young girls who arent yet tainted, still have the potential to be the faithful, loving, and caring companion that women used to be for their men.
It's funny you say that, because me and some friends came up with a system/scale for girls..
18-21 = Party brat, not looking for long term, will cheat on you at any chance just to try something different or new
22-27 = good, ripe age, more mature then party brat but has not become MAN HATER yet, this is a good age to meet a solid girl and see if there is potential to settle down and etc.
28-35 = WORST possible age, at this point woman is a MAN HATER she has been fucked over and scorned by cheating ex's, abusers, loser boyfriends, etc.
36+ = cougar range, some become cat ladies, some become lonely old hags, if a woman is single at this age there should be a big question mark going on over your head, how come no guy has stuck with her !?!?!? something is wrong... very wrong!