Ryan Phillippe and his fiancée Paulina Slagter called it quits. Two sources confirmed to E! News that the couple, who announced their engagement in December, have broken up after five years together. The reason behind their split has not been disclosed. The pair haven't been seen out together since mid-September in New York City. Phillippe has been spotted at various events recently, hinting that the duo may have decided to part ways some time ago.