Its got nothing to do with being "trained" lol. Some people are faithful, some are not. Some people are emotionally driven, some sexually, some both. sex is love to some people, its just sex to others. Some believe in monogamy 100%, some want open relationships, some want threesomes, some want to go swinging, some have fetishes (dressing up as a baby for example), some want to be spanked, some want anal, some dont, some watch porn, some dont, some are addicted to porn or sex, some want to be squished by fat people, some want to be whipped until they bleed... the list goes on and on and on.
My point is we are all different and you cant use the word ALL to describe men or women coz we are not all the same. You may want to love one woman and to f**k anything in a skirt if she gave you permission so maybe you should consider finding a girl like you who would also like an open relationship so she can f**k whoever she wants too or do you have double standards?
Maybe you should change your post to "does my gf understand that I..." instead of "do all women understand that all men" blah blah blah
if you stuck around on this site long enough you'll see that the men who come her for advice are 9/10 far more emotional then the women getting attached too soon to a girl who don't even want them. Its a regular occurance here and the proof is in the pudding