Rihanna On Good Morning America: "F Love" (Video)

Rihanna reveals she went back to Chris Brown after abuse.

"I just didn't realize how much of an impact I had on these girls' lives," Rihanna, 21, tells Diane Sawyer in her interview about her domestic violence case with Chris Brown. Near tears, she adds, "When I realized that my selfish decision for love could result into some young girl getting killed, I could not, I could not be easy with that part. I couldn't be held responsible for telling them, 'Go back.'"

Rihanna revealed that Chris Brown held her twice in a headlock and bit her in the ear last February on the night before the Grammys. In the 20/20 interview she tells Sawyer that she went back to Brown, and that it was a terrible mistake. "That's embarrassing that that's the type of person that I fell in love with. So far in love. So unconditional that I went back. It's humiliating to say this happened. To accept that? It's a traumatizing experience."

"Even if Chris never hit me again," Rihanna said, "Who's to say that their boyfriend won't. Who's to say that they won't kill these girls. These are young girls."

Rihanna said she that realizing the influence she has on girls around the world was "a wake up call for me, big time." She adds, "I'll say that to any young girl who's going through domestic violence: don't react off of love. F love ... love is so blind."

The interview aired on Good Morning America Thursday and will air in full on 20/20 Friday night. Check out an emotional clip here.