Paris Hilton is known more for whom she's dating -- Stavros Niarchos, fashion model Jason Shaw, ex-fianc?? Paris Latsis and current flame Benji Madden -- than what she's working on. "For Paris, dating is a whole other ballgame," says licenced psychotherapist Stacy Kaiser. "She's egocentric and attention-seeking and high-drama. So it's really dramatic to steal a boyfriend, it's really dramatic to hop from guy to guy, it's really dramatic to date someone mysterious, whom no one has seen before."