LOS ANGELES - The ex-husband of the woman identified by some media as the mother of Arnold Schwarzenegger's out-of-wedlock son says he feels betrayed by the former governor.

In an interview broadcast Tuesday on the TV show "Entertainment Tonight," Rogelio Baena said he learned last week he was not the boy's biological father. He says he will always regard the boy as his own.

"The Insider" also broadcast video Tuesday of Maria Shriver praising Mildred Baena at a celebration for one of Baena's relatives.

Shriver said she was proud of Baena for being a single, hard-working mother. Schwarzenegger can be heard echoing her praise, saying the housekeeper did "an incredible job."

Mildred Baena has been identified as the mother of Schwarzenegger's child by The New York Times and other media. The Associated Press has not independently verified she is the mother.