Rihanna is ridiculous … and thirsty like Moses wandering the desert. She showed up in the front row at a charity basketball game Thursday … eyes trained on ex-BF Chris Brown . Now that she’s with Drake again and not Chris Brown again … you’d think she wouldn’t fuel the fire. But then again, who are we kidding? It’s a special kind of insult to Karrueche … who’s back with Chris after being repeatedly humiliated by whatever continues to transpire between him and Rihanna. Your move Karrueche.