Chris Brown is speaking out about his physical assault on Rihanna nearly a decade after it took place.<br /><br />The singer reveals in a documentary that he felt "like a monster" after committing the attack, and gives candid details about what took place.<br /><br />According to E! Online, in his documentary Chris Brown: Welcome to My Life, he says that their relationship took an ugly turn when he confessed to being unfaithful with someone he worked with.<br /><br />He says, "I still love Rihanna, but I'm just going to be honest - we would fight eachother, she would hit me, I would hit her, but it never was OK."<br /><br />Finally it boiled to the altercation in his car when Brown admits, "I remember her trying to kick me, just like her beating shit, but then I really hit her. With a closed fist, like I punched her and it busted her lip. And when I saw it I was in shock, I was like 'why did I hit her like that?'"<br /><br />It escalated even further, and Brown hasn't ever quite lost his "monster" reputation since that terrible incident.<br />