Former The OC star Mischa Barton has dismissed reports she's dating Keira Knightley's ex Jamie Dornan, insisting she is single and looking for love. The svelte actress, who recently split from her rocker boyfriend CISCO ADLER, believes her hectic schedule makes it difficult to commit to a relationship. Barton, 21, says, "I think I'm too busy for men. I'm a single girl right now. "I'm hoping to spend more time in England, so who knows about the future and if the right guy came along. My mum and sister live in England and I love to spend time with them. "It's important to be with people who understand my commitments."