ARNOLD SCHWARZENEGGER has for the first time told about his 1996 affair – and the bombshell moment he had to tell his wife he had a son with housekeeper Mildred Baena. In new Netflix documentary Arnold, the Terminator star says his “heart stopped” when his then wife Maria Shriver confronted him with rumours about Joseph Baena, now 25, in 2011. 12 Arnold Schwarzenegger has finally opened up on the bombshell moment he told wife Maria Shriver he'd fathered a love child Credit: Alamy 12 Arnie fathered son Joesph with housekeeper Mildred Baena Credit: MySpace.com/ Supplied by Pacific 12 Arnie admits...