Katie Roiphe, N.Y.U. teacher and date rape apologist, wrote movingly in last week's New York magazine about how she's coping with divorce way better than anyone thinks she is and how she has already met someone and did she mention she's remodeling a house with "honey-colored, wide-planked floors"? She is! But one woman, Linda Friedner Cowen, wasn't so impressed with how adeptly Katie is picking up the pieces.