E! Online cited a source "close to the couple" as saying Lohan broke up with snowboarder Riley Giles shortly after they returned to Los Angeles from an ill-fated trip to celebrate Thanksgiving on the East Coast.

"She made it pretty clear when they got home. It's over," the source said, adding that one reason for the split was "she got tired of him pouting all the time."

The source went on to say Giles, whom Lohan started dating in Utah where she went to rehab, didn't like Lohan's busy, Hollywood lifestyle.

"It was fine when they were in Utah, just the two of them," the friend said. "But then they returned to LA and Lindsay was shooting a movie, photographers followed them everyone, she had meetings with this agent, that publicist, this director. His ego couldn't take it."