In a preview of Friday's episode, the 33-year-old singer and member of the group Dream described trying to press charges soon after the alleged incident, only to find out that her career would be in jeopardy if she did.
"I remember telling [my manager], 'Oh, so that's it, he just gets away with it?'" she said, wiping away tears. "And my manager just said ... you know."
In a detailed essay published on November 2, Schuman claimed that Carter sexually assaulted her in 2002. He allegedly invited her and a friend to his apartment in Santa Monica, took her to his office to listen to music and make out, and then forced her to have sex with him despite her repeatedly saying no.
Carter denied the allegations, telling TMZ: "I am shocked and saddened by Ms. Schuman's accusations. Melissa never expressed to me while we were together or at any time since that anything we did was not consensual."
Schuman told Dr. Oz that her manager said Carter had "the most powerful litigator in the country" and she didn't have the money to pay for an attorney to defend her if he came after her.
"My manager told me, 'You know you're trying to build a name for yourself right now, everyone's going to call you fame hungry, that you're trying to use this to better yourself or get your name out there and at this point there's nothing we can do,'" she continued.
When Dr. Oz asked her what she would say to Nick Carter now, she replied, "That I forgive you, I don't want anything from you. I wish you only the best."
She continued, "I don't want your money. I didn't do this to hurt you or your family, I did this for me because I needed this healing and I also did this, and I also came forward because I want to inspire other victims, other people who have been assaulted to come forward and know that they have a voice."