Bellatrix tried to think of a word to fill in the gap, but when the two of them had been silent for a few seconds, she burst into loud, insensitive laughter. She did her best to compose herself quickly and looked around to make sure no one was staring. When she was sure they had no witnesses listening in, she said quietly, "What's wrong with Rodolphus? We've already been friends a long time. We have fun together. He doesn't bore me. It's perfect. Perhaps if you talked to him more, you would see how good he is for me." She was half-accusing Narcissa of being too snobbish to stoop to talking to her best friend.