And while Anderson claimed she was paid simply for a dinner appearance with Sheen and his entourage -- including his ex-wife, Denise Richards -- Galanter countered that "she was hired to be the entertainment for the evening."
Both sides agreed Anderson was never paid to have sex with Sheen.
Anderson threatened her own civil suit on Monday, but it has yet to be filed.
"I never expected the night would unfold the way it did," she told "Good Morning America" Monday.
"He definitely was growing more intense as the night grew and went on. It's hard to say being that it was my first time hanging out with him if it was normal of his everyday behavior or not," Anderson said. "He seemed like a very egotistical person."
Anderson said she spent most of the dinner on Oct. 25 speaking with Richards. After Richards left the dinner and the rest of the group -- Anderson and Sheen included -- went out for drinks, Anderson said she was asked by a friend of Sheen's' to escort him to his hotel room and make sure he stayed there.
"At this point he was fairly intoxicated," she said.
"I was sitting on the edge of a coffee table and he was serving us both drinks and he was snorting something," Anderson said, adding that she doesn't know what he was using, but that it was a "white powdery substance."
"There was a little bit of romance, if you will," she said. "In the moment a lot happened."
But with her dress removed, Anderson, who admitted she was in the room willingly, said things took a turn for the worse.
"When I became really uncomfortable is when he put his hands around my neck," she said.
Anderson said Sheen became incensed when she begged for him to release her.
"He started throwing things. He threw a lamp. That was the first thing he picked up," Anderson said, her voice cracking. "And he threw it across the room at me."
"When he started throwing things at me I became shocked, scared," Anderson said.
Galanter initially responded to Anderson's allegations Sunday night in a statement to ABC News.
"Ms. Capri never made any allegation of wrongful conduct on the part of Mr. Sheen the night of the incident. She has posted on her website that she was 'fine' after the incident but if you wanted to see more of her enter the web site for money," Galanter said. "We will defend this lawsuit vigorously and will never pay her a dime. These allegations against Mr. Sheen are completely false, and are a blatant attempt to cash in on his celebrity."
Anderson told "Nightline" that she feared for her life.
"He was, from the beginning of the night, very loud and he had no hesitations when it came to using derogatory language or cuss words," she said, adding that "towards the latter half of the night, it got really bad. He started yelling racial slurs."
"He threw the lamp against the wall in my direction … And once the lamp flew, it was like there was just stuff coming from every angle. He was just -- anything he could pick up, he was trashing the place," she said.
Photos obtained by TMZ show a rumpled bed and strewn chairs. One of the chair legs appears to be broken.
When police officers arrived at the famed luxury hotel, they found Anderson locked in the bathroom of Sheen's suite. Police said the room had been trashed. Sheen was taken by ambulance to a nearby hospital for a psychiatric evaluation.
"He was calling me a whore a lot. And he was yelling things like, you F-ing bitch. If you don't come out here, I'm going to kill you. If I get in there, you're going to be sorry. If I get in there, you ... whore, you whore, whore. Like he just keep screaming and slamming on the door," she said.
Anderson also tells "Nightline" that she did not know Sheen's children were on the same floor in the hotel.
Anderson told "Good Morning America" she was never paid the $3,500 she was promised for attending the dinner with Sheen.