12/29/2010 at 02:00 PM EST
is back on the market.
The singer, who was first spotted getting cozy
with professional baseball player Matt Kemp last January, "considers herself single," a source tells PEOPLE amid reports of a split.
And from the sounds of it, she's not afraid to put herself back out there.
"She never has a problem finding guys," the source says of the "Only Girl" singer. "And she flirts with lots."
Kemp, who plays for the Los Angeles Dodgers, was the first serious relationship for Rihanna since she and Chris Brown split following a violent incident in 2009.
"He's just easy and really kind," she said, while admitting in October that she was in love with the Kemp.
Rihanna’s rep didn’t return a request for comment and Kemp's rep had no comment