NTR is not cuckoldry. The distinction may seem pedantic, but the difference is important. NTR is essentially corruption of a lover. NTR starts with an innocent and pure wife. Then either through predicament or latent desires, the female lover descends into sex crazed debauchery. The feeling of being helpless in the face of lustful hedonism allows you to simply let go and enjoy the ride without the stress of needing to perform or accomplish. The conflicting emotions of humiliation and satisfaction for realizing the girl you love is herself being satisfied and humiliated creates a third emotion that somehow brings you closer together through the shared experience and similar emotions of pain and pleasure.

NTR does not work with women who are already whores. With lovers you don't care about (flings and placeholder girlfriends). It does not work if the woman is simply cheating with another man. She must have the latent desires of a sex fiend so that all of this pain is worth it to feed such a veracious sex appetite.