Demi Lovato Reportedly Dated Wilmer Valderrama Before Entering Treatment Facility

After a bitter breakup with Joe Jonas (and before she entered a treatment facility for "emotional and physical" issues), Demi Lovato hooked up with Wilmer Valderrama, according to the NY Post.

18-year-old Demi and 30-year-old Wilmer first connected when they filmed a PSA in Chile for earthquake relief in March, and a few months later Demi was introducing Wilmer as her boyfriend. "The two started seeing each other in May right after her breakup with Jonas," a source on the tour said. "She would show us pictures of them together."

Lovato's rep had no comment while Valderrama's rep denied a relationship. Wilmer has dated everyone from Mandy Moore to Lindsay Lohan to Ashlee Simpson over the years, and even though he's not getting any younger, he doesn't exactly seem like he's willing to settle down anytime soon. Is it possible that the heartbreak of not one but two failed relationships was what sent Demi over the edge?