Melanie pauses mid-exit, eyeing him uncertainly. "Yes. I... I don't want to hurt people."

Part of her does. But she doesn't have to listen to that part. It wasn't even roused by attacking the hungries, though that doesn't surprise her. It's not in the cordycep's interest for her, or any other hungry, to attack those already infected.

She could point out that she hasn't attacked Nick so far, but she's not entirely convinced he wouldn't be all right without her. Either way, she's not going to push her company on him. He might prefer it if she just left.