"A man is only as faithful as his options."
Hhmmm.....I think that this is true in the idea that the options given come from the woman he is with.
As in can you be forced to cheat on the one your with?
In a marriage I say yes only because in a dating relationship you can always say to hell with it and walk away with out ever betraying the one your with.
How ever in a marriage you don't to get to walk away from something that you have so much invested in without a divorce.
The reasons for cheating are old and numerous but I always think that your going down that path when the lines of communication start to break down.
Problems don't get discussed or solved resentment, builds up, distance between couples grows
and bad choices are made because it seems that's all the choices that are left.