Kidnapping
With a finger, Rodolphus turned the point of her wand away from his chest and up into the air between them. "You're so confident in your charisma that you had to get all tarted up to come and see me? Is that why you were pouting and batting your eyelashes at me? 'Oh, Rodolphus, please come with me!," he raised the tone of his voice as he mimicked everything she didn't say or even remotely hint at when she had come to his house. "I beg of you, you are the only one I can turn to!'."
Sometimes, especially times like this, Rodolphus wished he could shut up. He was saying things, doing things, things he knew would purposefully upset her, things that would convince her asking him anywhere in her company was a mistake. But he couldn't help himself. He'd never been able to do so when it came to her and it only got worse the fewer were around to chaperone. Harassing her to the point that she lost her temper had always been his standard modus operandi.
When he and Bellatrix did everything together Rabastan would definitely have to be there, he decided. He could slap him or interject when things got bad like this.