EXCLUSIVE: Donald Trump's Ex, Marla Maples, Speaks Out on His Attack Against Ted Cruz's Wife

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The frontunners for the Republican presidential nomination are Twitter beefing over whose wife is prettier.

Donald Trump threatened to "spill the beans" on Ted Cruz's wife, Heidi, on Tuesday and retweeted a meme the next day meant to make an unflattering comparison between Heidi and his own wife, Melania Trump.

"Donald, real men don't attack women. Your wife is lovely, and Heidi is the love of my life," Cruz replied.

Now, Trump's ex-wife, Marla Maples, is speaking out. "I believe the world is just a better place when we can keep the peace," she exclusively told ET. "We're all different, but we're all alike in a lot of ways."

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Maples, who was married to Trump from 1993-99 and has one daughter with him, is competing on the 22nd season of Dancing With the Stars and told ET during Thursday's rehearsal that she has heard from her ex about the reality show.

"He wished me the best of luck, absolutely, and I so appreciate it. It was fantastic," the 52-year-old TV personality revealed. "So many friends and family are reaching out. It means so much."

"I haven't been able to respond to everyone, but I gotta tell you I feel all the energy and support," she added. "With all my heart, I feel every good wish and every prayer and it really helps me out."

Maples told ET it was her time to shine on DWTS. Find out what she had to say in the below video.