Mandy Van Duyne
Before rising to fame, Joe Jonas fell in love with his childhood best friend Mandy Van Duyne.
In one of her blogs in 2012, Van Duyne looked back at her short-lived relationship with the Jonas Brothers member, writing: "To me he was the boy I had a secret crush on since the age of 7, not the heartthrob Joe Jonas from the Jonas Brothers. He was my best friend, he always made me laugh and was the person I trusted with all my secrets."
The duo reportedly dated in the summer of 2005 and broke up in August amid Jonas' busy touring schedule. Per Van Duyne, they realized they were better off as friends and that the singer needed a friend more than a girlfriend.
Joe's most famous ex-girlfriend Taylor Swift became his muse in July 2008. However, they broke up three months later when the male singer called things off through his infamous 27-second voicemail.
The "Lover" singer confirmed the story during her appearance on The Ellen DeGeneres Show, and their split led her to release songs about their relationship on her two albums.
Meanwhile, Joe created "Much Better," referencing their breakup.
The "Lovebug" music video became Joe's bridge to reach Camilla Belle. However, their relationship only lasted for months in 2009.
Rumors claimed Swift wrote "Better Than Revenge" after the Trapped Beneath the Earth actress reportedly "stole" Joe from her.
Demi Lovato and Joe had a short-lived but memorable romance in 2010. After they broke up, the former couple remained friends and even toured together.
"There are so many crazy rumors flying around today," the "Heart Attack" crooner said. "Joe and I did split, but it wasn't over the phone. Things didn't work out but we'll remain friends."
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In the summer of 2010, Joe bloomed into another romance with Ashley Greene. They dated for more than a year before calling it quits in March 2011.
Among Joe's longest relationships, he shared one with famed Swiss graphic designer and visual artist Blanda Eggenschwiler.
They initially sparked dating rumors in November 2012 before breaking up in August 2014.
Juliana Herz was first spotted with the Jonas Brothers member in Los Angeles, Calif., on January 15, 2016, nearly two months after ending things with Hadid.
They ignited the rumors more when they attended a Grammy Awards after-party together.
Joe met his true love Sophie Turner in October 2016. It took them months before making their relationship Instagram official, and they dated for two years before their private wedding ceremony in Las Vegas in May 2019.
The couple share two children together.