Chris Brown is officially single. He broke up with his his now ex girlfriend Karrueche using his friendship with ex Rihanna and music as an excuse. In a statement released to the media , he says " I have decided to be single to focus on my career. I love Karrueche very much but I don't want to see her hurt over my friendship with Rihanna.I ' d rather be single allowing us to be both happy in our lives " Chris Brown's ex Chris Brown and Rihanna pictured at a Jay Z concert looks like the re union with Rihanna is definately going to happen. Twitter handle Ghameli