Charlie Sheen's Fiancée Brooke Mueller on Proposal: 'I Had No Idea'

She's been the silent woman in Charlie Sheen's shadow, but now Brooke Mueller is sitting down exclusively with “Extra,” opening up for the very first time about her two loves: acting and her future husband.

“He's unbelievable,” she gushed about her husband-to-be.

Charlie surprised Brooke with the engagement while the two vacationed in Costa Rica, where he reportedly gave Brooke a ring worth half a million dollars!

“Oh it was incredible,” Brooke told “Extra.” “I had no idea. It was really, really fantastic.”

One of the reasons Charlie and Brooke's relationship has made headlines is because of their peculiar relationship with Sheen's ex, Denise Richards.

Brooke and Charlie's ex-wife, Denise Richards, are actually friends – and she has a theory on how to keep even divorced families together.

“Divorce is common,” Brooke said. “We make it work, and the important thing is we love the kids.”

While Brooke and Charlie are in no rush to tie the knot, she said Charlie will help with the wedding plans.

“We're a partnership; we do everything together,” she insisted. “So of course he can be involved.”

Now that Brooke, an accomplished real estate developer, has a life that's unfolding perfectly, she's trying something different.

She's shooting for a career on the big screen in the new romantic comedy, “Strictly Sexual,” in which she plays a high-powered fashion mogul!

“The women are totally in control of their careers and sex lives, and I think it's important to have a movie that shows that,” Brooke said about her new film.

So now that she has the acting bug, will Brooke be making a cameo in “Two and a Half Men” to be by Charlie's side?