Chris Brown has one to thing say after he heard rumors ex-girlfriend Rihanna was dating Oscar nominee Leonardo DiCaprio: good job. The "F.A.M.E" singer didn’t have anything negative to say when he was asked about the gossip on. Sorry RiCaprio hopefuls! It sounds like Rihanna might not be dating Leonardo DiCaprio after all. According to new reports, Rihanna is actually getting close with DiCaprio’s best friend, club owner Richie Akiva….