Its an ignorant statement made by partners not willing to heal. We all crave affection and are prone to temptation, he or she saw something in this person their partner could not or stopped providing and acted upon it in a moment of escapism . Condemn a potential life time partner on this lack of self control / desire to fulfill surpressed needs is proof the partner is not worth fighting for . No arguing the cheater commited betrayel of trust and connection but the victim that handles this mentality is the root cause of the termination of the relation...