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A judge has thrown out a $50 million lawsuit filed by 50 Cent's ex-girlfriend, who said the rapper promised to take care of her for life.

Manhattan State Supreme Court Justice Carol Edmead dismissed Shaniqua Tompkins' claims to half the rapper's assets. The judge said 50 Cent's financial worth is "set at no less than $50 million."

The judge said she doubted an oral agreement for Tompkins' lifetime support existed. "It is incredible that two then-unemployed, penniless, 21-year-olds would make such an oral contract," she wrote.

The judge said that even if it were true that the two made an oral agreement for Tompkins' lifetime support, her breach of contract claim, "which is actually a claim for palimony," was barred by the six-year statute of limitations.

She said the couple's story was "an unfortunate tale of a loving relationship gone sour."

She also noted Tompkins will receive about $6,700 a month for years to come to take care of her son by 50 Cent, 12-year-old Marquise.

The rapper's lawyer, Brett Kimmel, said he was happy with Wednesday's ruling.

"Ms. Tompkins' claims pertaining to a $50 million verbal contract were entirely frivolous," Kimmel said. "This is a complete and total victory for 50."

A statement from 50 Cent said: "I'm very thankful for this decision. I knew that once the facts were heard that justice would prevail."

Tompkins' lawyer, Paul Catsandonis, said he will consider an appeal.

Tompkins, 32, claims she supported 50 Cent financially after they started dating in 1995 while he was trying to start a recording career. She says she also nursed him for months after he was shot nine times on May 24, 2000.

Tompkins says the 33-year-old rapper promised to support her forever if he "made it big." She says they made the oral agreement in her bedroom in September 1996, a month before their son was born.

The rapper, whose real name is Curtis Jackson, denied telling Tompkins he would take care of her for life. The judge said 50 Cent stated that if that was what he had intended, he would have married her.

The rapper admitted that he loved Tompkins when their child was born but didn't consider her his wife and didn't intend to marry her. He said she had been his girlfriend and now she was "my son's mother."

Last year, Tompkins sued 50 Cent to stop her eviction from a $2.4 million house the rapper had bought on suburban Long Island. She claimed he reneged on a promise to give her the house. The house later burned down.

Suffolk County police and fire officials have investigated but haven't determined whether the fire was a case of arson.

The rapper has been nominated for 13 Grammys, including for the song "In da Club" and the album "Get Rich or Die Tryin'." In 2005, he starred with Terrence Howard in a semi-autobiographical movie based on that album. He also starred in the 2006 film "Home of the Brave" as a soldier returning home from the Iraq war.