Miranda Lambert and Blake Shelton's divorce shocked everyone when they announced it in July. After four years, the inseparable couple took a permanent break from their relationship, leaving their fans with no hints or answer for their separation.  However, new reports claim that the exes' parting was reportedly due to her unwillingness to start a family. Gossip sites say that Miranda is to blame for their failed marriage.

There are so many speculations about Miranda and Blake's divorce, but neither of them had spoken about it. There are talks about his infidelity with rumors saying Gwen and Blake's romance started even before the former pair's separation.  The "Over You" singer also faced cheating rumors with her fellow American Country Music singers.  This time, a new revelation tells that the 32-year-old songstress was to blame for their split after breaking her promise with her ex husband to start a family, Movie News Guide reports.

"Although both exes remain mum on the details of their split, sources say Miranda broke a promise to Blake about when they could work on having children together," Hollywood Life reports.  According to Us Weekly's Nov. 30 issue via the site, "they disagreed on having a baby."

The eyewitness goes on to say that the once Country Music's hottest couple made a plan together to start a family, but she's not willing to do it. The site alleged that Miranda and Blake's divorce now have an explanation as the 39-year-old "The Voice" coach, who's a family man finds happiness with Gwen, who has three kids, including Kingston, 9, Zuma, 7, and Apollo, 20 months.

Three months after Miranda and Blake's divorce, Gwen and the "Forever Young" crooner's relationship was announced. The No Doubt frontwoman had also filed divorce with her husband of 13 years, Gavin Rossdale.  Do you think Miranda and Blake's split was caused by her reluctance to start a family?