Despite Lamar Odom telling reporters that "life is good" Monday, a third mistress has come forward, claiming that she had a relationship with the basketball player for more than ten years. 

In an new interview with Star magazine, twenty-nine-year-old Sandy Schultz came forward to expose her affair with Odom, admitting that their relationship took place years before he met, wife Khloe Kardashian. 

"Lamar and I first met in 2003 at Studio One nightclub in West Hollywood," Schultz told the magazine. 

Schultz, a graduate student, claims she and Odom "dated solidly ... and then on and off for seven years after that."

"I was very much in love with him," Schultz said. "I loved his openness and his sexuality. My nickname for him was 'Lam Lam,' and to hear Khloe calling him that now is like a dagger through my heart."

With plans to get married to Odom one day, Schultz was disappointed that Odom never proposed. In 2006, she left the country and became engaged to another man. 

"Our feelings for each other had remained so strong," Schultz said revealing that the couple had sex at his Manhattan Beach home. "It didn't bother him that I was engaged to someone else."

Schultz revealed that she broke off her engagement with her fiance to be with Odom in late spring of 2009.

On August 27, wife Kardashian hosted a "Welcome to L.A." party for the then-new Los Angeles Lakers player Ron Artest at Halo nightclub in L.A., and Odom brought Schultz and her sister along to the bash.

"We were sitting at our table having drinks," Schultz recalled. "I got up to go to the bathroom and when I returned, Khloe had taken my seat next to Lamar. She didn't move, so I sat in his lap." Schultz left early because she was tired, but says that Odom never came home.

"He was supposed to be home with me and he chose to go home with Khloe Kardashian instead," she said. "She knew I was Lamar's girlfriend and she obviously just didn't care. And Lamar didn't have the decency to call me that night to say he'd made that decision."