Nicole Scherzinger and Lewis Hamilton Break Up Again

Nicole Scherzinger and Lewis Hamilton have broken up...again.

The pop star, 36, and the British Formula One racing driver, 30, called it quits. The exes began dating in 2007, and in the years that followed, they separated and reconciled multiple times. "It was a mutual decision. The long distance kept them apart for long periods of time," a source tells the U.K.'s The Daily Mail. "They both spent most of their time alone because they were in different countries all the time. Nicole is heartbroken and devastated." Scherzinger, who currently stars in London's West End revival of Andrew Lloyd Weber's musical Cats, primarily resides in L.A., while Lewis is based in Monaco.

Is it possible the former couple might reconcile? "It's been seven years now, and it's always the same reason that splits them up," an insider tells The Daily Mail. "Love always brings them back together."

Meanwhile, a source tells The Sun that Scherzinger "finally had enough" and initiated the breakup. "Nicole knew Lewis had no plans to marry her. She's completely gutted and feels lost about her future."

In December, Hamilton discussed their future. "We're in a good place. She's such a hard worker, and we inspire each other. But I don't think we've ever really discussed marriage. We're very much aware of the time together, and how precious time is," he told The Sunday Times Style magazine. "I think naturally, at some stage, that becomes a step. But we're trying to support each other while we do things we love."