On Friday, she described the “horror” she felt as Brown was biting and hitting her during a violent argument, saying she saw “no soul in his eyes.” “There was no person when I looked at him,” the 21-year-old singer recalled ““He had no soul in his eyes. Just blank.”

In the interview Rihanna,who is no longer dates Brown, described him as “definitely my first big love. She said their relationship was intense.

“The more in love we became, the more dangerous we became for each other equally as dangerous,” she said. “It was a bit of an obsession almost.” A search warrant affidavit filed in the case stated that Brown hit, choked and bit Rihanna and tried at one point to push her from the car. “It was ugly,” she said.

During the attack, the singer said she had no idea how it would end “That’s all I kept thinking the whole time, When is it going to stop. “When is it going to stop.”

The attack occurred in Los Angeles’ Hancock Park neighborhood as Brown drove a rented sports car. She said it was triggered when she saw a text message on his phone from another woman and confronted him about it. She said he lied about it and “I wouldn’t drop.”

Brown was sentenced to five years’ probation, six months of community labor and a year of domestic violence counseling after he pleaded guilty to felony assault.

Rihanna’s interview coincides with the debut of her new single, “Russian Roulette,” from her upcoming album, “Rated R.” More of the ABC interview will be included in Friday evening’s news magazine “20/20.”