To the public's knowledge, Taylor Swift's longest relationship to date was with Joe Alwyn, a British actor best known for roles in "The Favourite" and "Conversations With Friends."
Despite dating for more than six years, Swift and Alwyn were famously mum about their shared life and rarely spotted in public together. Their breakup made headlines in early 2023, in the midst of Swift's blockbuster Eras Tour.
Swift's latest album, "The Tortured Poets Department," seems to offer clues as to why they split.
Keep reading for a complete breakdown of their relationship.
Claudia Willen contributed to a previous version of this article.
Both Alwyn and Swift attended the 2016 Met Gala, which was themed "Manus X Machina: Fashion in an Age of Technology."
At the time, Swift was in a relationship with Calvin Harris, who didn't attend the event. They broke up just one month later.
Fans have speculated that Alwyn caught Swift's eye at the famous gala, based on the lyrics in Swift's 2017 song "Dress."
"Flashback when you met me / Your buzzcut and my hair bleached," she sings. Alwyn showed up to the Met Gala with a shaved head, while Swift paired a platinum-blonde bob with her Louis Vuitton dress.
One month after breaking up with Tom Hiddleston, Swift and her friends attended a private Kings of Leon concert at The Bowery Hotel in New York.
A video shared by a fan website revealed that Alwyn was also in attendance, though it remains unclear if the pair interacted inside the closed-door event.
The singer included photocopied pages of her diary entries with physical copies of her 2019 album "Lover." One excerpt seemed to reference her relationship with Alwyn.
Dated January 3, 2017, Swift wrote, "I'm essentially based in London, hiding out trying to protect us from the nasty world that just wants to ruin things."
"We have been together and no one has found out for 3 months now," she added. "I want it to stay that way because I don't want anything about this to change."
Read more => May 2017: News breaks of their relationship.