"There's just nothing there," he exclusively told E! News after his Oct. 10 DWTS performance before clarifying that she works at his company The Agency. "This whole story is so crazy. There's nothing to talk about there."

Mauricio also shot down speculation that Leslie is actually dating his dad Eduardo Umansky, who accompanied them to dinner along with Mauricio's mom Estella Sneider.

"She had tickets, she invited him," he explained, "but that is not his girlfriend."

As for where he and Kyle stand today after announcing marriage problems back in July?

"We're trying to keep it private, but at the end of the day we're not private people," Mauricio told E! earlier this month. "We're public figures and the reality is we are separated right now. We are going through a really difficult time. It's been a struggle. We are not ready to throw in the towel. We are still working on our marriage and we're not in a rush."

Keep reading to relive Mauricio and Kyle's happier times as a family.