Humans were strange to him. They felt too much, and they drove themselves by the nose looking to connect with others. He'd never seen that in himself before. Needing to connect, but then Poseidon had given him Kymopoleia. He was fascinated with her, but it was through the eyes of a monster. He'd been locked away from his siblings and the rest of the world as if they were just something to be hidden. The world grew on without him and he'd slowly lost what he was. Oddly for him when Kymopoliea came back into the picture they had created this strange connection. The thing that he had never understood about humans before. He stopped moving the needle. Maybe this was what this human girl was looking for, and it was strange that she wanted anything from him.
"We're not nice to each other." He hadn't been for a long time, he hadn't understood what Kymopoleia was before. However, now that Poseidon's game had backfired, Briareos felt need to keep her. Perhaps the way he kept this human.