Maybe she just turned on the shower when the Shooting started but not the hot faucet.

Turning on the hot faucet, he holds his hand underneath until the water heats, and then wets the cloth.

He goes into the bathroom and turns on the light and finds a facecloth and holds it under the hot faucet.

All I could hear was the steady dripping of the hot faucet, which had never turned off properly, and the crackling of Badedas bubbles.