Cass was really trying not to laugh his arse off. Really he did, because laughing this hard bloody well hurt! Still, it was hilariously funny, there was no denying that.
'If Pansy pretends you're not there, you've done something or another to offend her, which with her means that you've either - in her view - been prettier than her, better dressed than her or insulted someone she cares about in some way. Seeing how she cares about a fair few people that's easily done.'
'Oh, or you flirted with the wrong person,' he added as an afterthought, thinking of Harry even if he of course not mentioned that.
When she explained further what she'd meant by Antonin, however, he smiled. 'I'm sorry I misunderstood,' he said. 'And it was a normal blasting curse - but at very close range,' he said with a frown. 'The effects of the Cruciatis curse he used first would be gone by now, so that wouldn't matter. It was the Blasting curse which nearly killed me - or so the healers here says,' he added.
At her instructions on what to pass on to Antonin and when, he smirked, then nodded. There was no need to comment on the issue further, after all. He almost looked forward to the first chance he would get to tell him no.