My hands were shaking in rage as I read the article in Quidditch Quarterly. It was highly speculative, never actually naming any sources as the author only dropped hints of Narcissa's promiscuity and how she or Lucius hovered around Viktor as he did endorsements and public appearances for charity. Once or twice, there was a photo that showed her putting her arm around Viktor and leading him away when questions got too personal or risque, but it was a long stretch to say she was jealous and she wanted the young man for herself and to make Lucius watch the entire time.