Joe Jonas has opened up about his past relationship with Demi Lovato, reportedly stating he only stayed with the singer to help her deal with her drug abuse problems.
The 24-year-old star began dating Lovato in 2010, but their relationship was short lived, lasting just four weeks.
In a candid interview with New York Magazine, Jonas said: "One relationship that meant a lot to fans was the one I had with Demi Lovato, who I've known for years. We had been friends forever, we were both Disney kids - we eventually dated for a month.
"I really got to know her and got to see the ins and outs of what she was struggling with, like drug abuse. I felt like I needed to take care of her, but at the same time I was living a lie, because I wasn't happy but felt like I had to stay in it for her, because she needed help. I couldn't express any of that, of course, because I had a brand to protect."
He continued: "It was an insane situation to be in. Things kept building up, and Demi ended up punching a girl in the face on a plane, because she thought the girl was blaming her for something. Everybody gasped, and the girl just started bleeding.
Joe further explained: "That's when her team and her family told her, 'You need to go into rehab.' I remember being in South America, and fans immediately jumped to the conclusion that we kicked her off the 2010 tour, and they just hated on us for it."