Swift wrote the song, “This Is What You Came For,” when she was still dating Harris, and initially wanted to keep her involvement a secret, so was credited under the pseudonym Nils Sjoberg.
But after Swift’s reps confirmed that Sjoberg is indeed Swift, Harris couldn’t bite his tongue over the drama any longer.
“Hurtful to me at this point that her and her team would go so far out of their way to try and make ME look bad at this stage though,” he said on Twitter.
Over a series of tweets Wednesday, Harris praised Swift’s songwriting talent and revealed she even sings a little on the song, saying, “she smashed it as usual.”
“I figure if you’re happy in your new relationship you should focus on that instead of trying to tear your ex bf down for something to do,” he went on. “I know you’re off tour and you need someone new to try and bury like Katy ETC but I’m not that guy, sorry. I won’t allow it… Please focus on the positive aspects of YOUR life because you’ve earned a great one.”