However, Swift’s longest public relationship has been with her current boyfriend,Joe Alwyn.
ELLEreports that Swift and Alwyn were first linked back in 2016 when they allegedly met at theMet Gala.
A few months later they were seen attending the same Kings of Leon concert, which sparked dating rumors.

In September 2018, Alwyn spoke publicly about Swift for the first time.
Of course, Alwyn was first credited as Swift’s co-writer under the pseudonym William Bowery.
However, fans recently noticed the actor’s name added to the list of Grammy recipients.

(He now hashis own Grammy.com page.)
Swift admitted that Bowery was Alwyn during her “Folklore” documentary on Disney+.
So William Bowery is Joe, as we know," Swift confessed.