Rumors are rampant that Madonna will marry her boyfriend, British film director Guy Ritchie, by year's end. Britain's Sun tabloid quotes a Ritchie colleague as saying, "He intends to marry Madonna by Christmas." Intensifying speculation, the New York Daily News ran a photo of the singer/actress/businesswoman/diva sporting a diamond ring. The couple have a son, Rocco, born three weeks ago. Madonna, who previously was married to Sean Penn, also has a 3-year-old daughter, Lourdes, with ex Carlos Leon. Madonna's spokesperson, Liz Rosenberg, was unavailable for comment at press time.