Wilmer Valderrama and Demi Lovato
Sam Sharma/Pacific Coast News
11/02/2011 at 03:00 PM EDT
appears to have a man in her life.
The singer, 19, was spotted smooching former beau Wilmer Valderrama, 31, in the Los Angeles area on Tuesday.
The actress, who split from Joe Jonas
in 2010, was linked to Valderrama
shortly after the breakup. Later that year, she entered treatment
for eating disorders and bipolar disorder.
While Lovato and Valderrama were photographed in a passionate embrace, they remain mum about their relationship.
Lovato's rep tells PEOPLE, "We're not going to comment on this."
A call to Valderrama's manager was not returned.