His nod is rough and a little wild at the question, and his fingers squeeze tighter-- either reassuring or being assured, even he isn't sure-- at hearing the uncharacteristic swear.

"Reg, a-and B-Bella, and they wouldn't've killed me at first, Moony. He wants me on their side." And there's only one he he can be referring to, with such venom in his voice, "But Reg doesn't hate me; he couldn't do Crucio me even though I was trying to make him because she was going to kill him if he didn't and she tried to make me hurt him when she realized--"

There's a crack right through his voice as he says that, words briefly devolving into a sob because there's still almost nothing in the world he hates more than the thought of harming his brother, and that's even more true now, after tonight.

"--But I didn't. I couldn't. I fought her, Remus, I didn't know if I'd be able to but I did and she was furious. Thought for sure I'd get hit with all three Unforgivables in one night." A rough, terrified laugh, one that makes his breath come in sharp because of the way it shakes his ribs, "But he managed to convince her otherwise and now he's off doing Merlin knows what--"

And he's terrified for his brother, and in pain, and feeling guilty and relieved all at once. His shoulders shake with the force of his sob this time, earning another sharp inhale in pain.