Unfortunately this is going to be the trend until Chris's probation is over. These guys will continue start fights with him just to prove to Rihanna and the world that he hasn't changed. Frank got what he wanted out of this situation so at this point there is no point in pursuing it or he did not have the guts to follow through as the mess would come out that he is also not a saint in this saga. He does not realise that he is making it increasingly harder for himself to sustain his career as he will have to perform some outragious stunt one after the other. Chris will fullfill his destiny and learn to control his impulses with Rihanna right next to him. Give it three more months and there will be another issue with another Rapper, my initial guess was going to be Mick Mill but he is also on probation so I guess it's gonna be someone else with a clean image. It might take a little longer but Chris will survive and this will be another challenge he had to overcome.