JARED LETO and LINDSAY LOHAN on the set of the movie 'Chapter 27'. New York City - 21.01.06

Neither Lohan nor CAMERON DIAZ's ex-boyfriend have spoken publicly about the 2005 romance, but now the MEAN GIRLS star has opened up about why she and Leto didn't gel.

She says, "Jared was so paranoid. He'd always be like, 'Don't come over if you're going to bring 15 f**king paparazzi.'"