This "y all men are unfaithfull" shall I say "analogy" seems very american(ish), if one idiot blew him self up - the whole race is blame, if on guy cheats the whole MANkind is to blame, sigh.....
I personally never had, dont have and Insha Allah will never have intensions on cheating on my "someone special", she is everything and I mean everything I ever wanted a girl to be, so I don't see a single reason why I'd leave her for some one else, its not just us guys, you wemen are con artists and casanova's aswell, this whole unfaithfull concept is a trend widely followed by wemen as much as men, so its both sides to blame....