British actress Tara Fitzgerald has reportedly split from her boyfriend KELTY CASTON. The Sirens star, who recently joined the BBC crime drama Waking the Dead, had a two-year relationship with Caston, but the two are said to remain on good terms. A friend told British newspaper New Of The World, "It's sad because it looked like Kelty could have been 'the one'. "They're still friends, they haven't really fallen out. But she's undoubtedly been unlucky with men. "She's starting to see herself trapped as a singleton for good, which she wants to avoid." Fitzgerald, 39, has been married once before to actor JOHN SHARIAN, but the relationship ended after just two years.