Adrian Grenier laughs off reports he was dumped by actress Isabel Lucas for Shia Labeouf

The Australian beauty - who was a passenger in Labeouf's truck when he crashed in Hollywood at the end of last month - reportedly dropped the Entourage actor in August for her Transformers co-star after the accident. Grenier insists Labeouf didn't steal his former flame - because he's been too busy having fun being single in Hollywood to have a serious relationship. He says, "I thought it was funny that suddenly there was a big scandal, because since when were we dating? First of all, we don't give each other those labels - it's more subtle than that. "She and I have a very open communication. We're friends with common interests. Secondly, love and relationships are complicated. No one could ever get it right in a four-line sentence. I'm not married. We're young in Hollywood and having fun."

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