The desperation is palpable. At 35, she introduced me to "eligible bachelors." At 38, divorced men. At 40, widowers. She says "a woman cannot be alone forever." I say I would rather be alone than be a replacement wife for a grieving man. Why is a woman's age a countdown to desperation? Is 40 the expiration date for female choice? Single women over 35, do you feel the pressure?