Charlie Sheen revealed to the world on NBC's "Today" Tuesday that he has been HIV-positive for years and said he told each one of his partners that he had the virus. Ex-girlfriend Bree Olson is claiming differently, saying that the former "Two And A Half Men" star never told her about his diagnosis even though he was made aware of it when the now 29-year-old actress and former porn star was living with him.

Olson told Inside Edition Sheen never told her he was HIV-positive and reassured her that he was "clean." She believes Sheen did not "care" enough to tell her and that they were "having sex every single night."

"It was like playing Russian Roulette. That’s the best way to put it. It was like putting a gun to my head and pulling the trigger, each time," Olson said. "I could be dead right now. I literally could be dead right now because he did not tell me that."

Olson also went on "The Howard Stern Show" on Sirius XM Tuesday morning to set the record straight that she is HIV-negative. She said that after hearing reports on Monday about Sheen's rumored diagnosis, she went and got tested to make sure she did not have the virus.

"He never said anything. I was his girlfriend. I lived with him. We were together. We had sex almost every day for a year," she told Stern.

Tuesday morning, Sheen sat down for an interview with Matt Lauer on "Today" to put down false rumors. "I have to put a stop to this onslaught, barrage of attacks of subtruths and very harmful and mercurial stories that threaten the health of so many others that couldn’t be further from the truth," Sheen said.

By coming out publicly, the 50-year-old actor was hoping he'd be able to help people by spreading awareness. He has also said that he's hopeful it will allow people to come to terms with the reality of the virus if they are infected.

Olson and Sheen's relationship was confirmed in March 2011. Olson was involved in a love triangle with Sheen while living in his mansion along with Natalie Kenly, which created tension. The actress reportedly ended the relationship in April 2011.