Teen actress Lindsay Lohan has laughed off speculation over her love life, because she is too busy with her career to consider dating. The Mean Girls beauty has been linked with a string of lotharios including Brett Ratner, Bruce Willis and Jared Leto, but she insists she is enjoying being single. The 19-year-old says, "If I dated all the people they say I have I'd be dead by now... "And I don't feel ready for a boyfriend right now because I'm trying to get on with my career."