Alice shook her head, her hair circling around her face. "No. I'm not letting you here by yourself." What she didn't say was "So I can find your dead body tomorrow morning." But it might have been implied.
"Either I'm staying here or I'm going to find someone to stay here with you. But you're not staying by yourself." She didn't want him to deal with this on his own. Even though odds were he was going to try to deal with this on his own.
Alice was almost positive if this didn't get a reaction out of him, nothing would.