Gene Infidelity

A man automatically unfaithful to their future spouse if your family has a history Of Infidelity?
I've been dating a guy for 9 months. Up timing is everything I've been looking at a man and more. However, the fact that all adult males in your family has been unfaithful to his wife has me terribly worried. Although it is completely against the actions of men in her family ((very religious), and often says he can not see the point of being unfaithful to a woman who loves I often wonder if later in life was to follow the "tradition" of the family and be unfaithful to me. Also your statement "I hope I never be unfaithful to my wife is something not quite reassuring that I wonder if "gene family" is his strong will and faith. So I'm wrong side judge on the basis of the actions of the members of your family?
Morals vary from person to person =) I'm going to cheat around a girl I'm coming in Depending on what type of girl that is .. I will never cheat, if I was in a serious relationship or married.
ON THE RIVIERA 2 ~ MONTAGE AND MUSIC by Ennio Morricone, with Gene Tierney and Danny Kaye