She isn't accusing him of anything. She'd just been asking. When he refuses to give her the saw so that she can finish his work for him - sparing him the pain - Brigid turns back to the branch.

Using two hands, she breaks it off the tree. Then she offers it to him, her head cocked to one side.

Her eyes aren't the deep brown they normally are. There's a lightening at the edges, but she's under control. For now anyway.