Selena Gomez is Nick Jonas's lover, at least in the video of Jonas Brothers' MV Burnin' Up. In real life, Nick Jonas said he is not dating Miley Cyrus, however he didn't rule out if he will/is dating Selena Gomez, the new Disney Channel's teen sensation.
Sceenshot pictures of Nick Jonas and Selena Gomez in Jonas Brothers' Burnin' Up video