Zelos (2016) online

Bernard is the thirty-something he always planned to be. He has a successful career, a meticulously neat beachside apartment and a hairstyle with just the right amount of gel. He adores his girlfriend Sarah who's about to move in when she returns from overseas. But Bernard's pristine existence is turned upside down when Sarah confesses her holiday romance. To salvage the relationship, Sarah insists they equal the playing field: Bernard should sleep with another woman.