"No smart answer for the truth, eh, Roddy?" Antonin responded. "You're even more inane than Tom. Instead of making one adversary, you make legion."
"As if you don't have another blade squirreled away somewhere that you could transfigure into a second sword. I think the truth is you've just been too lazy to learn to fight with two blades." He snorted, "Inadequacies? Which one of us is married to the homicidal harridan and which to the voluptuous redhead half his age?"
When the Lestrange apparated, Antonin hesitated for only a split second. There'd been no parting insult, so Roddy wasn't running away. Roddy being Roddy, that meant there was an attack coming from right behind, probably low down.
Leaping as high as he could, Antonin turned in the air, chopping for Rodolphus' sword arm with one blade, and head with the other, as soon as the other man came into view.