Then things get complicated
Earlier today, the story broke that the songwriting credit for "This Is What You Came For" was at the heart of the Harris-Swift breakup. According to TMZ, Swift wrote the song and sent it to Harris, and they both went into the studio to do a full demo version with Swift on vocals, but agreed that they didn't want their relationship to overshadow the song. Instead, Swift would use a pseudonym. Enter: Nils Sjöberg, a name that sounds like a famous sommelier or a composer who summers with the dudes from Sigur Rós.
According to TMZ's sources in the Swift camp, everything was cool until Harris, while promoting his new hit song, appeared on Ryan Seacrest's radio show in April and downplayed the idea of ever collaborating with Swift. "You know, we haven't even spoken about it," he told Seacrest. "I can't see it happening." Apparently, this comment hurt Swift and played a role in the end of their relationship.
Adding credence to TMZ's story, a rep for Swift confirmed with People that the 1989 singer wrote the song. What's less clear is exactly what role the song played in the breakup. Either way, it does feel like yet another piece of savvy media manipulation on the part of Swift, on par with her recent use of the Hiddleswift drama to deflect Kim Kardashian's accusations of duplicitousness regarding the Kanye West "Famous" conflict in a GQ cover story. Taylor Swift has experience with the media. These leaks don't often happen randomly.