As “Us Weekly” exclusively confirmed Thursday 22-year-old Taylor Swift and 18-year-old son of Robert F. Kennedy, Jr. and the late Mary Kennedy have broken up after a couple months of dating. While a source told “Us” the former couple "quietly parted ways a while ago," Swift recently spoke out about her famous ex-boyfriends on Katie Couric’s talk show, Katie. In a previously recorded interview airing Friday, Oct. 26, Swift doesn’t hold back in expressing her feelings about ex John Mayer claiming her song about him "humiliated" him. "Oh, come on," she snapped.