Sister. He was right, then. Inwardly, he groaned. Of all the bloody moments to finally meet her, it was at an unfortunate time without preparation. At all. He felt as if he was doused with icy water, he could even feel extinguished warmth at his ears. His hands tensed in mid-air before they finally lowered. Bellatrix may be cruel, but she wasn’t too cruel to murder someone in public was she? Ted hoped so. Oh, how he hoped so.
He cleared his throat, managing a slight smile. He might as well be sociable, if not friendly. (If not warm. After all, Bellatrix wasn’t so hospitable at the moment either.) "Ted Tonks. I’m—" he paused, quickly weighing his options. He could either admit or—well, he already said his name, hasn’t he? Denial would be futile. “--married to the dear former sister of yours,” he then continued as he started to build up a little bit of confidence once the shock faded to the periphery.