I didn't realize they had a history.
Sooo... what if the reason Affleck wants out is because of Gibson?
lol..What in the world? Anyway, if that were to be the reason, he has a right to do what he feels he needs to..weather others agree or not. Would suck, of course, but it's his life and his decision to make.
You think he would risk losing his reputation just because he disagrees with the hiring of Mel? I know he threw that tantrum on Mahrer but wanting out of Batman because Mel got hired seems kinda stupid. Hollywood isn't exactly a bastion of morality.