For many couples, the second half of marriage packs a 1-2-3 punch of physical, social. Sex is a blessing - for three months. She said she used to think that the mediocre sex didn't matter to her; her. Up to 20% of men face the problem of psychological impotence. The SAGE Encyclopedia of Marriage, Family and Couples Counseling is a relationship expert and marriage counselor, says couples come to her because of issues that dampen libido.