Jonas reportedly began dating his 'Camp Rock' co-star in 2010, however the relationship lasted only four weeks.
Related: Demi Lovato Swings And Misses With Body Positive Comment (But She's Still Really Cool)In an interview with New York Magazine, Jonas suggested that Lovato was more than he bargained for, as she began seeing him during an ongoing struggle with her drug addiction.
Ex-Jonas Brothers member Joe Jonas has spoken out about his past romances by explaining his short relationship with Demi Lovato.
According to Jonas, he stayed with Lovato to help her deal with a developing drug problem.
He later spoke out about their brief try at dating, saying that it "didn't work out" because he "really just liked her as a friend." Ouch.
On the Speak Now single "Back To December," Swift apologizes (when does she ever do that?
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