• Taylor Swift talked about her and Joe Alwyn's songwriting process 
  • Alwyn helped Swift write some of her songs under a pseudonym 
  • The couple was first rumored to be dating in 2017 

Taylor Swift has opened up about her and boyfriend Joe Alwyn’s relationship, revealing that they bond over making sad songs.

Swift and Alwyn, who usually keep their relationship private, have talked about their songwriting process in an interview with Zane Lowe. The singer previously revealed that her actor boyfriend had a hand in helping her pen some songs in her highly celebrated album “Folklore.”

“Joe and I really love sad songs. We've always bonded over music. So it was… We write the saddest. We just really love sad songs. What can I say?" Swift shared.

"I say it was a surprise that we started writing together, but in a way, it wasn't because we have always bonded over music and had the same musical tastes. And he's always the person who's showing me songs by artists and then they become my favorite songs or whatever,” the country singer-turned-pop star added.

Alwyn also helped Swift write some of the songs on her newest album, “Evermore,” under the name William Bowery. These tracks are “Coney Island” and “Champagne Problems.”

In November, Swift opened up about the mystery person credited for her songs “Betty” and “Exile,” confirming that Alwyn was behind the tracks. She added that her boyfriend plays the piano and that he loves to create things.

"I just heard Joe singing the entire, fully formed chorus of 'Betty' from another room. And I just was like, 'Hello,’” she said.

The Grammy winner and the British star first fueled dating rumors in 2017, a year after Swift and Tom Hiddleston had called it quits. At the time, tabloids claimed that the singer had rented out a place in London to be near Alwyn.

Despite being secretive about her relationship with Alwyn, Swift has become more open about him in recent months. In November, she candidly talked about him and their relationship in an interview with Paul McCartney for Rolling Stone.

“I think that in knowing him and being in the relationship I am in now, I have definitely made decisions that have made my life feel more like a real life and less like just a storyline to be commented on in tabloids," Swift said.

Taylor Swift LOS ANGELES, CALIFORNIA - DECEMBER 12:Taylor Swift attends the 2019 Billboard Women In Music at Hollywood Palladium on December 12, 2019 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images) Photo: Photo by Frazer Harrison/Getty Images