updated 08/20/2014 AT 11:00 AM ET
•originally published 08/21/2014 AT 12:40 PM ET
“They’ve been living apart for months,” the source says. “He’s been staying in hotels.”
Despite outward displays of solidarity – the couple spent this summer’s Mother’s and Father’s day together with their 3-year-old twins, Monroe and Moroccan – things between them “have been bad for a while,” the source adds.
The couple renewed their vows in 2013 with a fairy-tale-themed bash at California’s Disneyland.
“We’re so secure with who we are,” he said. “And Mariah’s my dream girl.”
Carey was previously married for five years to music mogul Tommy Mottola. They divorced in 1998.
When reached, reps for the couple did not comment.