Arnold Schwarzenegger 'fessed up to multiple affairs during his 60 Minutes interview last night, but he also claimed Maria Shriver knew about them all. But Shriver's friends are calling "bulls**t" on that, as one source delicately puts it to TMZ. Had she known, she never would have supported him during his groping scandal—and would in fact have filed for divorce sooner, the source adds. Another says Shriver suspected the cheating, but didn't get confirmation until she confronted Arnie about his love child. Shriver's pals had slammed the 60 Minutes sit-down even before it aired.