It seems answer enough to quell any suspicion arisen over her resistance, though there hadn't been much. Bellatrix lowers her wand, in time, and lifts her left arm in its place.

"I suppose I can employ less celebratory means, if it worries you. You still have so much to learn."

And such is the source of her sympathy before, alas. She tugs at the ragged sleeve of her dress, the Dark Mark (still burning black with evidence of recent use) easing into view.