by Marc Malkin | Tue., Jun. 12, 2012 10:41 AM
Denise Richards and Richie Sambora have split up...again.
And this time, the mom of three's ex Charlie Sheen may have had something to do with it…
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?
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?"
Richards and Sambora have been on and off for about five years.
As we first told you, they walked their first red carpet together just a month ago when Sambora was honored in Beverly Hills by the Midnight Mission.
"This is a big night for Richie, so I'm here to support him," Richards said at the time. "It's really important work that he does."
Sambora beamed, "We're back on. It's all good."
But the source doesn't see Richards and Sambora getting back together anytime soon. "Denise doesn't want that kind of drama in her life," the source explained. "She's had enough drama to last her a lifetime." (The breakup was first reported by Celebuzz.)