Rumored boyfriend Liam Hemsworth’s love affair with Miley Cyrus has left his girlfriend at home heartbroken.When Laura Griffin saw her actor boyfriend of five years, Liam Hemsworth passionately kissing Miley on the set of The Last Song, she believed he was only doing his job.  But as the 19-year-old student would soon discover, the love of her life was not acting at all — he had fallen head over heels for the Hannah Montana star.

Laura told Woman’s Day in an interview, “He was my boyfriend and my best friend. There is no other reason why we would have broken up.”

In the days since she found out her boyfriend had dumped her for Miley, 16, Laura has confessed on her Facebook site her “total utter regret“, that she’s suffering “depression of some sort,” and that she has “tears streaming“. Meanwhile, the millionaire US actress is using Twitter to bask in the joy of her romance with Liam. “Against all odds I fell in love.” “I think I’ll just sit around and eat sushi and watch Liar Liar with Liam.”

– Its not Miley’s fault he fell for her.