is it fair or unfair???

It is strange isn't it, that when a man has a new girlfriend he's thought of as a stud but when a woman changes partners as many times she's is thought of as cheap or of loose morals. I know so many guys who boast about how many women they have had but if their girlfriend or wife says she had XX lovers before she met them they suddenly find it offensive. The worst thing is that some women also think of other women badly when they hear of these things but find it acceptable that guys change partners more often than their socks sometimes! Strange world, strange double standards people have huh?! x