What causes a guy to have an affair behind his girlfriend, or wife's, back?

laurieluvsit
Yes, I know girls do this also, I will do the one about why the girls do this separately, for now the focus is on the guys.

I know some of you have had first hand knowledge about this, so what was the reason in your experience or that of anyone that you know?

Please share with us!
A. He simply thinks he can get away with it and no one will ever know
B. The relationship is already in trouble and is heading in a bad direction so he just wants to have another girl to run to before ending this one
C. He didn't do it of his own free will, an experience seductress lured him with sudden, and unexpected, sexual desire that he was unable to resist
D. All of the above are possible reasons for infidelity
E. OTHER, see my comments below, or just open the "Affair" survey
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What causes a guy to have an affair behind his girlfriend, or wife's, back?
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