NFL star Travis Kelcerecently revealed he and his girlfriend, Taylor Swift, are "absolutely happy," and if the Kansas City Chiefs star's recipe for keeping romance alive in a relationship has anything to do with it, it would seemingly make sense why! The couple, who have been affectionately dubbed 'Tayvis' by social media and the media, have been together for a year and a half, and can often be seen expressing their happiness in PDA-filled photos.