The secret messages in the eyes of his brother were completely lost on Rodolphus who had never been the most observant person in the world. He did laugh at what he said though, the demands Rabastan made. He'd never heard such things out of his brother's mouth before. It was hilarious! "Seriously?" He asked, his grin splitting his face. "You think you can come in here and s-s-s-snap at me and I'm going to do exactly what you say?"
Turning pale, dead eyes back to Amycus, Rodolphus' grin deepened while any true warmth born from honest amusement melted away. The gouge in his hand throbbed with its own little heart beat but that didn't keep him from wrapping his fingers around the front of Amycus' clothes over his chest as he leaned forward and whispered intimately into his ear, "I know all about how you plan to introduce my brother to the Dark Lord," he admitted. "Rabastan told me. Once he has the Mark, my brother and I will join forces. We'll be a team and I will shower him with every compliment and admiration I can think of until he is so completely enamored with me you will cease to exist to him at all. He will forget all about you. He will be entirely mine. And if you ever rub your time with Bellatrix in my face again I will make sure at the end of the Dark Lord's plans he will be completely and utterly destroyed."
With his private message delivered, Rodolphus sat back, caught a drop of his spattered blood that Amycus had missed from his forehead and then licked it off the tip of his finger before he stood and let him up.