It was around the time of the Ryder Cup that Stokke and Fowler were finally confirmed to be a couple, although they never announced it themselves. One of Fowler's teammates accidentally outed them during a televised interview.
Jason Day told the press that even though Fowler didn't have anyone to celebrate with at the side of the course, he did have a girlfriend waiting for him. Fowler missed a media call the next day, and Day again said he was with his girlfriend. The girl's identity was obvious.