British actress Elizabeth Hurley is at the centre of speculation suggesting she has split from her cricketer fiance Shane Warne. The rumours come exactly two years since the Australian sports hero proposed to the Bedazzled star following a whirlwind romance. Reports suggest travelling back and forth between the U.K. and Down Under has finally taken its toll on their relationship. A source tells The Sun, "They have been so loved up and have tried to make it work, but the distance has been a huge issue. "Work commitments mean they both spend so much time travelling they have hardly spent any quality time together." The split speculation has been heightened after fans noticed the two stars had not reached out to each other on Twitter.com for several weeks. The pair had previously been extremely vocal on the social networking site, regularly tweeting each other romantic messages. Hurley failed to wish Warne a happy birthday on the site when he turned 44 on 13 September (13). The couple last appeared in public together at the Ascot racecourse in England in July (13).