CHICAGO— The fiance of a suburban Chicago woman accusing Republican presidential hopeful Herman Cain of making a sexual advance says the woman stepped forward because she felt she had to. Sharon Bialek challenged Cain on Monday at a news conference in New York. Her fiance is 49-year-old Mark Harwood of Mundelein. He tells The Associated Press that Bialek told him about the alleged incident for the first time Friday.