Mariah Carey & Nick Cannon: Divorce ‘A Done Deal’ — Separated For Months

EXCLUSIVE

Mariah Carey and Nick Gun separated back in May — and are living apart … and we’re told divorce lawyers have been negotiating a material goods agreement and custody covenant for months and the divorce is “a done deal.”

Sources connected with the couple tell TMZ … Mariah and Nick have been living in break houses in NYC since May.  He sees the kids but that’s the boundary of their friend.

Our sources say  … Nick’s appearance on Huge Boy’s radio show in March was the commencement of the end. Nick played Huge Boy’s game — name the 5 celebs you’ve slept with.  Nick named 5, but our sources say the one that made Mariah insane was Kim Kardashian.  

We’re told Mariah tore into Nick for weeks … feeling humiliated and the relationship never in excellent health.

We’re told it went from terrible to worse when Nick went on Howard Stern and talked about Mariah not giving it up before they got hitched.  She went nuclear.

Our sources say Mariah feels Nick has abandoned her by taking every gig that’s on the desk … when they don’t need the money.  She’s especially mad because it keeps him away from their kids.

For Nick’s part … we’re told he feels Mariah has become impossible because she surrounds herself with “yes men.”  He says she can’t handle it when he dares to disagree with her.

We’re also told Nick is incredulous Mariah is bitching about his work ethic … he says he’s generated $ 75 million since 2011 for the family.