"Clarence should know that she doesn't owe him an apology, but it's not something he would have necessarily communicated to his wife," she said.
"I feel sorry for her [Virginia]… because based on his book, I don't think he has shared with her what he was like at that point in his life."
In the interview, McEwen told Cooper that she does not want vengeance against Thomas. She said she remained quiet during the trial, in part, because she was still friendly with her former lover.
Still, McEwen was harshly critical of her former lover's performance on the nation's highest court.
"Clarence is 90 percent of black people's nightmare on the bench," McEwen said of the Justice's rulings on the high court. "So I would say from the point of view alone -- no, he's not suited to be on the bench."
She said Thomas' opinions reflect a transformation of the man she used to know and that they have made her more comfortable with coming forward.
"Clarence has transformed himself -- and continues to transform himself -- into a figure that is fundamentally repugnant," she said.
"Clarence is angry that the black community did not stand up for him... at the point when -- as he would call it -- he was being 'beaten up' at the hearings and even before then," McEwen told Cooper. "I have a firm belief that his rulings on the Supreme Court are a way for him to punish the black leaders and the black community that did not stand up for him.
McEwen, 65, was an administration judge for the Securities and Exchange Commission and the Social Security Administration. She formerly taught law at Howard University and the District of Columbia Law School. She also worked on Capitol Hill for then-Sen. Joe Biden, helping him prepare for the Thomas confirmation hearings.