Divorce talks between Tiger Woods and Elin Nordegren have gotten ugly, the New York Post reported Friday.
Nordegren has ramped up her financial demands, requesting that Woods pony up an estimated $750 million, according to the Chicago Sun-Times .
After starting out fairly civil, the divorce negotiations "have turned extremely testy," the newspaper reported.
Nordegren also refuses to sign a lifetime "confidentiality clause" that would prevent her from writing a book or doing any interviews related to the collapse of the couple's marriage.
She also wants full custody of their two kids, the newspaper reported, even though it was first believed that they were going to agree to joint custody.
Nordegren has spent a lot of time away from her hubby in recent months.
"Elin started to build her own life and once she did, she grew distant from him," a source told RadarOnline earlier this month.
She went to Arizona alone for nearly a week recently and took the kids to Sweden while Woods played golf.