During circumcised sex, the woman's sex organ does not experience the true feelings that nature intended.  And instead of the loving sensuousness and pure pleasure of natural intercourse, circumcised sex can subject the woman to various degrees of discomfort and displeasure, often accompanied by frustration, incompleteness, and disappointment.

This becomes increasingly apparent as the woman ages (the more she has sex with the circumcised man).  But the problem can begin as early as the late twenties or early thirties.

This unsatisfactory sex affects her on a primal level, causing her to feel various degrees of resentment toward her partner, whether she consciously realizes
it or not.  She becomes subconsciously annoyed, frustrated, and even angered.  This can affect the relationship far beyond the bedroom door, and she may begin taking out her dissatisfactions by belittling the man, nagging him about his faults, or by being bitchy and argumentative toward him.  And petty arguments can snowball into heated arguments.  This can gradually erode the relationship and eventually set the stage for divorce.  In America, half of all marriages end in divorce.  This is double the rate of European countries where most men are not circumcised.