Is Charlie Sheen to Blame?

Richards, 41, and the Bon Jovi rocker, 52, called it quits last week after they had a massive argument in Nashville before Sambora was set to present at the CMT Awards.

The screaming match went down at the Hermitage Hotel. "Everyone heard it," a source tells me.

So what was the fight about?

Mr. Sheen!

Sambora apparently doesn't like Richards' close relationship with her former husband. He's even asked her to stop having contact with Sheen," the source said, adding: "They have two children together. How can she not be in touch with him?"

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