Brandi Glanville, Dean Sheremet Comfort Each Other Amid LeAnn Rimes-Eddie Cibrian Affair

After LeAnn Rimes and Eddie Cibrian went public with their relationship in August, her ex, Dean Sheremet, quietly reached out to Cibrian's ex, Brandi Glanville.

Yeah. This looks to have all the makings of a serious Shania Twain / Mutt Lange / Frederic Thiebaud / Marie-Ann Thiebaud love quadrangle situation a-brewin'.

"They have been supporting each other," an insider says of the pair, who first met on the set of the Lifetime movie Northern Lights, which starred their spouses.

At the time, they didn't know an affair had begun. Now, "They've put the pieces together about the last few months, and they're developing a good friendship."

"They're the ones who understand what the other is feeling."

Translation: It's just a matter of time until Dean hits that.

As LeAnn and Eddie nauseate with PDAs, scorned spouses Dean Sheremet and Brandi Glanville are finding comfort in one another. You know what that leads to.

On Tuesday, Rimes announced that she and Sheremet are divorcing - just days after taking a PDA-packed vacation with Eddie Cibrian to Cabo San Lucas.

Asked how it feels to see his ex with Cibrian, Sheremet fought back tears, saying: "I don't really know what to say. It's bizarre. It's surreal. But I'm OK."

Luckily, Dean has found comfort in comisserating with Brandi Glanville. We can't wait for the paparazzi pictures of them holding hands. Give it a week.