Popsugar Celebrity Celebrity Couples History of All of Taylor Swift's Relationships A Guide to All of Taylor Swift's Feuds, Friendships, and Flames December 26, 2015 by Ryan Roschke View On One Page Photo 14 of 21 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 14 John Mayer: Flame History: The pair shared a short time together at the end of 2009, after which Taylor wrote the song "Dear John." John remarked at the time that the song humiliated him. Current Standing: To this day, things still seem rocky. John joked on the Late Late Show about how Taylor Swift avoids him. It probably doesn't help that he's involved with Katy Perry, either. Previous Next Start Slideshow Katy PerryTaylor SwiftCelebrity Couples