For the past five years Mary J Blige and her husband Kendu Isaacs have been the happiest couple in hip-hop. But it now seems that all that has changed. MediaTakeOut.com has learned that Mary and Kendu are on the verge of divorce.

A close friend of the couple told MediaTakeOut.com that Mary suspects that her husband has been cheating. According to our source, "Mary caught him doing something that he shouldn't have been doing and she is mad as hell." And the source added, "for Mary, there's nothing worse than being betrayed ... so I think the marriage is probably over."

And the break up couldn't be happening at a worse time for the R&B diva. According to our tipster, Mary had been trying to get pregnant. The source tells, "Mary was really looking forward to having a baby ... it was the happiest I'd ever seen her." Adding, "if those two break up it will really be sad, Mary was on top of the world with her new album and everything ... that woman just can't get a break."

But not everyone feels sorry for the platinum selling artist. Rod McCullom, author of the popular blog Rod 2.0, tells MediaTakeOut.com, "Kendu has three children with his ex-wife that are approximately five, six and eighteen years old. That means that his ex-wife was either pregnant or had just given birth when he and Mary began dating in 2000. How can you hook up with a man who cheats on his pregnant wife and not expect this kind of drama? Ray Charles could have seen the writing on the wall."