Jason Mesnick, Molly Malaney Are Engaged!

Former Bachelor star Jason Mesnick — who famously dumped ex-fiancee Melissa Rycroft on national television for Molly Malaney — has popped the question yet again, asking Malaney, 25, to marry him.

"He is engaged," Mesnick's rep confirms to Usmagazine.com.

Mesnick, 33, proposed Tuesday night during a vacation in New Zealand.

"They haven't set a date or made any firm plans," a source tells the new Us Weekly (on newsstands now).

In July, Mesnick announced on a Bachelor TV special that he and Malaney will wed "for sure."

The new Us Weekly (on newsstands now) reports that she has even agreed to move from Milwaukee to Seattle, where Mesnick lives with his son, Tyler.

"They're just enjoying being together," a source tells Us of the newly engaged couple.

"I'm really in love with Molly," Mesnick said during the July 20 The Bachelorette: The Men Tell All special. "She's completely different from anybody else I've ever dated."

Added Molly, "I would marry Jason tomorrow. I'm so crazy about him. I know I want to spend the rest of my life with him."

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Mesnick's ex, Rycroft (who was recently diagnosed with swine flu), has also moved on. She is engaged to Dallas insurance agent Tye Strickland.

"I think what everybody just saw was one of the best things that has happened to me in my life," she has said of being dumped by Mesnick.

"It seems like forever ago. It was forever go," she said on the July 28 After the Rose special. "What's kind of funny is where I've been, I haven't really brought myself back to that point."

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