Sugaree, been there. Done that. I guess everyone thinks this physiology stuff is goofy, but we are physiological/physical being first and it affects everything we do.
Physiologically speaking, the more you tell yourself you can't/shouldn't have this man, the more intensely you will desire him.
They can now track the electrical impulses of emotions in the brain and when people know that they shouldn't have something, the desire for it increases. Maybe that is the inpetus for extramarital affairs. ??

Scientists have studied that whole concept and diagramed the electrical impulses as they occur at the synapse. Way too complicated for here. Another endorphin thing.
Also, recent studies of monkey offspring has contracicted the previous belief that female monkeys only mated within their social groups, Now that they have DNA, they have discovere that female monkeys primarily mate with socially unacceptable males from inferior social groups.
In other words those female monkeys have been fooling around with the rogues all this time. Intersting huh. Just like humans. I guess it's born in us.
However, if we can love ourselves enough to control those destructive impulses, we can have both the rush of passion and the joy of love. God is love and if He loves us, maybe we can love ourselves. And if we love ourselves, we won't let anyone abuse us.
smile