But they recently rekindled their relationship and have been dating for weeks, according to the National Enquirer.
A source tells the tabloid, "Denise and Richie never really stopped loving each other."
The insider adds Richards and the Bon Jovi star have chosen to keep their reunion under wraps as their exes battle their own troubles in the press.
On Monday, actor Sheen is expected to begin a spell behind bars, connected to his Christmas Day altercation with wife Brooke Mueller in Aspen, Colorado, while Locklear was recently caught up in a hit-and-run case, stemming from an accident in April. The case was recently rejected due to lack of evidence.