Celaena was still sleeping so she could not hear him, after that segment of her dream she was training with Rowan, on how to control her Magick. Rowan had told her to use the earth as a conductor to initiate her, but her first try had failed, so he punched her  and she fell then he kicked her until he was sure he had broke three ribs, and then took her to a Healer who healed her but they still hurt