Her first thought is that she's killing him, God, she's killing him, she's killing Clark, the way he's screaming, she's--

She feels physically ill, stomach lurching like a drunk man trying to walk a tightrope, and she presses her hands to her forehead, sinking down next to the bed.

It's not until she says that he's back that she realizes she did a good thing. And then she starts crying. "I'm sorry. I'm sorry, I'm sorry, I hurt him, is he really okay? Is he really... God."