Rihanna has been accused of sending out a dangerous message to other victims of domestic violence after admitting she still 'misses' her ex-boyfriend who was charged with assaulting her three years ago.Rihanna's turbulent two-year relationship with rapper Chris Brown ended after he attacked her on the eve of the Grammy Awards in 2009.But in an interview with Oprah Winfrey, which broadcast in the U.S. on Saturday  night, the Bajan beauty says Brown 'made a mistake' and 'needed help' adding that she misses him.Charities have criticised the comments claiming they could reduce the seriousness of abusive relationships.Vivienne Hayes, chief executive of the Women's Resource Centre, told The Independent: 'Rihanna's case demonstrates the emotional complexities felt by women locked in abusive relationships.'Whatever the nature of the argument, [Brown] chose to beat her up. And we need to stop society allowing us to normalise such behaviour.'Rihanna has admitted she 'was more concerned about' her 'best friend' Chris Brown after the singer's vicious attack on her three years ago. The Independent