A third woman has come forward with claims that she had an affair with Lamar Odom. 29-year-old graduate student Sandy Schultz has surfaced with claims that she dated Odom for more than a decade, Radar Online reports.

According to Radar, the romance began several years before the professional athlete met reality star Khloe Kardashian.

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

She said the two of them "dated solidly" for two years and then off-and-on for the next seven years.

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

Schultz told Star that she eventually wanted to take her romance with Odom to the next level and when he hadn't proposed to her by 2006 she left the country and eventually got engaged to another man. The following year she moved back to the United States and rekindled her relationship with Odom.

She said it felt as if "nothing changed" between the two and both still had strong feelings for each other. The mistress also added that Odom didn't care she was engaged to someone else and she eventually broke off that engagement so she and the former Clippers player could be together but their happiness didn't last long.

She claims things went south after Kardashian hosted a "Welcome to L.A." party for Ron Artest. Odom was on the guest list and reportedly brought Schultz and her sister to the party but claims the reality star "made a beeline for her man," Radar reports.

"We were sitting at our table having drinks," she said. "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 eventually left the party early but Odom never came back home that night. She believes he went home with Kardashian instead. One month after the party, Odom and Kardashian were married.

For two years Schultz told Star that she didn't speak to Odom and randomly got a phone call from him one day asking her to meet him in San Francisco where he had a basketball game. It was obvious the athlete was trying to hide something. Schultz claims he asked her to pay for the trip so his wife couldn't trace his credit card.

"It was shocking that he called me since he was married to Khloe," she said. "But at the same time, I wanted to see him and let him see what he missed out on."

A couple days after their romantic rendezvous, the graduate student said Odom disappeared and she never heard from him again. According to a new report, Kardashian knew about the alleged mistresses and had the athlete followed by a private investigator.

Her "evidence" showed that her husband had an affair with at least five women. Two other women - Polina Polonsky and Jennifer Richardson - have already come forward with cheating allegations.

Do you think the other two women will eventually come forward?