The 46-year-old singer's husband underwent treatment for a second bout of throat cancer in December, and she has been considering a break since his surgery. But she has now finally slowed down to devote time to him, and their sons - Rene Charles, 13, and three-year-old twins Eddy and Nelson. "They are each other's lives. He and her family come first and she's always made that clear," Dion's friend Robin leach told people.com.