James made the statement Wednesday after the Oscar-winning actress disclosed in an interview with People.com that she and her now-estranged husband adopted a newborn child several months ago.
In his statement, James speaks of an unspecified addiction that he says has taken from him the child and his wife. He calls them "two of the things I love the most in life."
The Hollywood couple separated in March after reports of his infidelity.
The Associated Press contributed to this report.