Balazs and Thurman
03/19/2007 at 02:30 PM EDT
Uma Thurman and hotelier Andre Balazs have ended their three-year, on-again, off-again relationship, her rep, Robert Garlock, tells PEOPLE.
"I will confirm that they are no longer a couple," Garlock said Monday, the day after a source close to the actress told PEOPLE the pair had split.
The breakup of Thurman, 36, and Balazs, 50 – who had begun dating in late 2003 – takes place amid rumors that the couple were planning to wed in the Caribbean this summer.
Just over a year ago, after Thurman appeared solo at the 2006 Oscars, the Kill Bill
actress said in a statement
that she and Balazs – who owns such properties as New York City's Mercer Hotel and the Chateau Marmont and the Standard in Los Angeles – had split.
"Unfortunately, it is true," she said in the March 8, 2006, statement. "But we remain close friends."
By last fall
, however, the two were again more than just friends, and were seen together everywhere from Copenhagen
to New York City
– which Thurman and her two children with ex-husband Ethan Hawke call home.
Thurman and Hawke were together for six years, until she filed for divorce in 2003.
Thurman is currently filming The Accidental Husband
, in which she stars as a talk-radio host who gets into trouble after dishing out love advice.