The 'Run It' singer has spoken out about his humiliation at losing his temper with the 21-year-old beauty in an attack which left her covered in bruises and bite marks and has revealed he still can't look at the photographs of her injuries.
He said: "It's unbearable to view. It's something that I have to live with every time they show it. I'm embarrassed that I couldn't control my anger at that time. It's a reminder that I have to be in control of my own actions and not anyone else's. My actions today and in the past shape my future."
In February, the 20-year-old musician lashed out at his ex-girlfriend following a pre-Grammy's party.
He was found guilty of the assault and ordered to 80 of community labour, 12 months of domestic violence counselling and five years probation.
Chris also has to stay at least 100 yards away from Rihanna for the next five years.
The singer has now vowed to "learn from" his behaviour.
He told Britain's The Times newspaper: "Domestic violence is totally wrong whatever the circumstances, no exceptions.
"I'm only 20. This is a bad mistake I made, but one that I'm not denying nor running away from. I don't believe I should let it shatter my life. I'm owning up to the wrongs I've done and am working on myself. I'm trying to find the positive amid the negative. I'm urging people to learn from what I did and not take the same route. If I do that - act as an example - then I feel I have no reason to go through the rest of my life with my head hanging down."
The US star claims he is moving on with his life but will always have "love in his heart" for Rihanna.
He explained: "I'm always going to have love in my heart for her, but I'm not heartbroken right now. I'm moving forward. I will always be remorseful for the situation but at this point, I'm just living my life."