"I never spoke to her," Kidman (aka Mrs. Cruise No. 2) tells Australia's WHO magazine of reports that she advised Holmes (aka Mrs. Cruise No. 3) during her divorce. "I wish all of them well, but I was not involved in any of that."
Nicole, 45, parted ways with Tom in 2001, but insists she harbors no ill will over their decade-long marriage.
"I married [Tom] really fast and really young, but I don't regret that because it got me [kids] Bella and Connor, and I did have a fantastic marriage for a long period," she says. "Then when it didn't work out, I had to really dig deep and find my way through depression, but I have no regrets about all of it. It was all a part of growing up."
She describes her life post-divorce as the "loneliest, loneliest existence" until she fell in love with fellow Aussie Keith Urban.
"I never, ever take Keith or our love for granted," says Kidman, who married the country crooner in 2006, "and I always keep in my mind that my dream is to grow very old with him."
Kidman also talks openly about her struggle to conceive.
"I had tried and failed and failed," she shares. "Not to be too detailed, but I've had an ectopic pregnancy, miscarriages and I've had fertility treatments. I've done all the stuff you can possibly do to try get pregnant. … Every woman who has been through all those ups and downs knows the depression that comes with it."
She calls the 2008 birth of daughter Sunday Rose "the miracle in my life," acknowledging, "I had so much time thinking that wasn't going to happen in my life and trying to understand that. When it did happen -- and for it to be a surprise -- that was great."
Less than two years later, Kidman and Urban added daughter Faith to their family via a surrogate.
"All my kids are highlights of my life," states Kidman. "I remember when we adopted Bella, her looking at me for the very first time. That is extremely powerful, like a kind of birth, too. They are all my biggest joys."
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