The 50-year-old actor has apparently been in a slump since the failure of his recent film, "The Lone Ranger", reported Showbizspy.
"He is in a terrible state over the whole thing. He has been relying on Amber to maintain his fragile ego, but she isn't sure how much more she can take," a source said.
"She has been locked away in his apartment, looking after his kids, but his smothering behaviour is driving her crazy," the source added.