Marc Jacobs' close friends say that he is treading a thin line with how much partying he's been doing. According to the New York Post, Marc showed up to the Costume Institute Gala two hours late with a mystery man.
One of his close pals says, "He spends most of his time partying until morning in Paris. It's out of control. There's always a different boy and everyone is worried he's going to pull a Halston" - referring to the legendary designer whose work suffered due to drinking and drugs. Halston died of AIDS in 1990.
His partying ways thankfully haven't affected his always amazing work, but we side with his friends that at some point you need to take a step back and slow your roll!