Sirius hated it, how much John and Rose had suffered, because of Harry. Since the replacement bond nothing had gone their way anymore. They were treated with suspicion and hatred. And no one believed them, if they tried to claim that Harry was in danger, because of the Malfoys. It angered him that they believed those slimy snakes more than noble Gryffindors, who were loyal and honest. Why couldn’t they just listen to them? They knew the truth about the Malfoys, but no one was willing to stand against the Malfoys.