Jack just happened to be walking undre the tree when he heard the snap and the shriek. He didn't recognize the woman's voice right away. In fact, he didn't recognize her until after he'd caught her. He cradled the brunette in his arms and looked down at her.
"Are you okay?"
He wasn't going to put her down until he made sure she was, even if he was sure she might be likely to hex him or shout at him again.