He watched as David left, then got to his feet and started to limp about, trying to focus on exploring the almost-copy of their cave back home instead of what David would be bringing back for him. There was nothing else alive in the cave, anyway, he tried to tell himself.
He eventually managed to start thinking again, but he was far too thirsty to somehow get rid of the fangs. He ended up sitting on the raised area in the centre of the cave, just waiting for David to return.