Rockman's loss

After chapter 2 in Volume 8, While the real Rockman goes and find his allowance that Bubbleman threw away, Dark Rockman comes in and takes the real Rockman's place whiles he's gone and began to brutally beat the sh*t out of Bubbleman and Aquaman to death. As Roll caught her attention towards Rockman's strange behavior as he brutally beats up the two poor navis, Roll began to beg Rockman to stop hurting them, this quite irritates Dark Rockman, so he stops beating up Bubbleman and Aquaman and gazed seriously at Roll, he called her hurted names and told her to shut up, so Roll began to feel frusterated and bursted into tears as she runs away from him. On the other hand, the real Rockman saw her walking on the road, so he decided to go to her. He walks up to her and asked why she was going home. This made Roll mad, she then glared at him sharply and immidiatly slapped him without giving him a second warning, this made Rockman quite confused but not so much hurted.