is reportedly devastated after her split from Nick Cannon
, who confirmed this week that they're currently living separately because of his busy work schedule.
"She is heartbroken. This has been going on for months. It has a lot to do with Nick's career choices. He does not have to work, but he's been throwing himself into gigs and projects," a Source tells E! News. "She has tried and tried to get him to stay home more, but he always uses work as an excuse."
It's not known if Cannon and Carey, who has four-year-old twins Moroccan and Monroe together, are going to separate permanently.