Background: Kidman was born 20 June 1967 in Honolulu, Hawaii, while her Australian parents were temporarily in the United States on student visas. Her father was Antony Kidman (1938-2014), a biochemist, clinical psychologist and author, who died of a heart attack in Singapore aged 75. Her mother, Janelle Ann (nee Glenny), is a nursing instructor who edited her husband's books and was a member of the Women's Electoral Lobby. Kidman's ancestry includes Irish, Scottish and English heritage.
Context: Kidman has been married twice: previously to actor Tom Cruise, and currently to country singer Keith Urban. She has an adopted son and daughter with Cruise as well as two biological daughters with Urban. Kidman met Cruise in November 1989, while filming Days of Thunder, they were married on Christmas Eve 1990 in Telluride, Colorado. The couple adopted a daughter, Isabella Jane (born 1992), and a son, Connor Anthony (born 1995). On 5 February 2001, the couple's spokesperson announced their separation. Cruise filed for divorce two days later, and the marriage was dissolved in August of that year, with Cruise citing irreconcilable differences. In a 2007 interview with Marie Claire, Kidman noted the incorrect reporting of the ectopic pregnancy early in her marriage. "It was wrongly reported as miscarriage, by everyone who picked up the story." "So it's huge news, and it didn't happen."  In the June 2006 issue of Ladies' Home Journal, she said she still loved Cruise: "He was huge; still is. To me, he was just Tom, but to everybody else, he is huge. But he was lovely to me and I loved him. I still love him." In addition, she has expressed shock about their divorce. In 2015, former Church of Scientology executive Mark Rathbun claimed in a documentary film that he was instructed to "facilitate [Cruise's] breakup with Nicole Kidman". Cruise's auditor further claimed Kidman had been wiretapped on Cruise's suggestion.  Prior to marrying Cruise, Kidman had been involved in relationships with Australian actor Marcus Graham and Windrider (1986) co-star Tom Burlinson. She was also said to be involved with Adrien Brody. The film Cold Mountain brought rumours that an affair between Kidman and co-star Jude Law was responsible for the break-up of his marriage. Both denied the allegations, and Kidman won an undisclosed sum from the British tabloids that published the story. She met musician Lenny Kravitz in 2003 and dated him into 2004. Robbie Williams confirmed he had a short romance with Kidman on her yacht in summer 2004.  In a 2007 Vanity Fair interview, Kidman revealed that she had been secretly engaged to someone prior to her present relationship to New Zealand-Australian country singer Keith Urban, whom she met at G'Day LA, an event honouring Australians, in January 2005. Kidman married Urban on 25 June 2006, at Cardinal Cerretti Memorial Chapel in the grounds of St Patrick's Estate, Manly in Sydney. In an interview in 2015, Kidman said, "We didn't really know each other - we got to know each other during our marriage." They maintain homes in Sydney, Sutton Forest (New South Wales, Australia), Los Angeles, and Nashville (Tennessee, USA). The couple's first daughter was born in 2008, in Nashville. In 2010, Kidman and Urban had their second daughter via surrogacy at Nashville's Centennial Women's Hospital.  In an on-stage interview by Tina Brown at the 2015 Women in the World (WITW) conference, Kidman stated that she turned her attention to her career after her divorce from Tom Cruise: "Out of my divorce came work that was applauded so that was an interesting thing for me", and led to her Academy Award in 2002.
Question: what relationships did nicole have?

Answer:
Kidman has been married twice: previously to actor Tom Cruise,