Singer Rihanna charges that Chris Brown has attacked her in the past, claiming she was in an abusive relationship that progressively got worse.The incident, which allegedly occurred during over the Grammy weekend, apparently left the singer with swollen eyes, a cut lip, a bloody nose, contusions on the face and bite marks on her fingers and arm. Sources say the case has been returned back to the police department by the Los Angeles County District Attorney for further investigation. Chris Brown now faces felony domestic battery, and has already faces a possible jail term for criminal threats.With the rumor mill swirling, there have been various versions on what happened between the two that night. According to the police report, the argument began after Chris received a text message from a woman who wrote about getting together.During the argument, he allegedly started striking her, reports tmz.com. The police report states that she ordered Chris to drive her home and "faked a call" to someone, saying, "He's dropping me off and make sure the cops are there."At this point, Brown began to attack Rihanna with his fists, police say. After this call he reportedly stated. "You are really f***ed up now, I'm going to kill you." After the attack with Rihanna took the keys out of the ignition and threw them outside of the vehicle. Representatives from either entertainer has offered a statement on the most recent development.