In the month of April, the 'ER' star had revealed in The New Yorker that an anonymous caller encouraged him to "dump" his stunning girlfriend "before you're sorry". Clooney, 47, apparently never found out who left the message, but friends believe he was nagged by concerns that Larson's youthful indiscretions might tarnish his efforts as an activist.
Though Larson, 29, denied that she was once a stripper, embarrassing pictures have hit the Net of her biting the butt of another woman and straddling a guy. "George loved her," The New York Daily News quoted a source, as saying. "He liked the relationship because it was easy she was always available to be at his side. But eventually he decided she was too young," the source added.