Khloe Kardashian Marriage Crisis — Lamar Odom's THIRD Mistress Comes Forward, Reveals Decade-Long Romance

Over the next two years, she claims, the couple "dated solidly … and then on and off for seven years after that."

"I was very much in love with him," Schultz reveals. "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."

By 2006, however, Odom had yet to propose, so Schultz left the country and became engaged to another man. When Schultz returned to the U.S. the next year, however, it was as if nothing had changed.

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

Her fiancé wasn't too pleased about her dalliance, however, and Schultz broke off her engagement to be with Odom in late spring of 2009. But their happiness would be short-lived.

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

Once there, Schultz says Khloe made a beeline for her man. "We were sitting at our table having drinks," she recalls. "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 says. "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."

One month later, Khloe and Odom married. Schultz says, "I was appalled and insulted."

Two years later, however, the ex-Los Angeles Lakers star resurfaced out of the blue. By March 2012, they had reconnected and planned a reunion in San Francisco, where Odom and the Lakers were set to play the Golden State Warriors. "He called me and told me to fly up and meet him, but he asked if I had the money to pay for it," Schultz says, claiming he explained that Khloe could trace his card.

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

As soon as Schultz arrived to Odom's hotel, "we just fell into each others' arms, hugging and kissing," she says. That weekend, they spent two nights in bed together.

One Sunday, Odom said he was going out to a cash machine. Schultz recalls, "The bellman later handed me an envelope with $800 in twenties in it, but Lamar had already left. That was the last time I have spoken with him."