Jennifer Aniston had suspicions Brad cheated during their marriage and because of that felt uncomfortable starting a family as reports by Star magazine. The magazine tells a tale of Brad’s roaming eye (and disappearing act) during a 2003 Hollywood party, that had Aniston friends Courtney Cox and David Arquette shaking their heads.

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In late 2003 — before Brad started filming Mr. and Mrs. Smith with Angie — Brad left Jen behind while he went to a Vanity Fair party in Los Feliz, Calif. But he wasn’t alone for long. A source tells Star that Brad began chatting up a very sexy party planner, and then the two disappeared together. In fact, Jen’s best friend, Courteney Cox, even sent her husband, David Arquette, to look for Brad. When Brad finally came back to the party, “everyone was whispering about what had gone on between him and that girl.”

Oh, Brad you are so BUSTED! This seems to be a theme with him—what with the all the Diane Kruger rumors and all. The article also tells of Brad’s “quivering” voice when he balled out Jennifer for stirring up the Brad/Angelina/Jennifer love triangle of 2005 and how Angelina cracked the whip, put a gun to his head and forced him to call Jennifer. Snore.

Photos: PR Photos