Safe is the best option but it could also be wary or even rash as well but it's more likely to be safe and if that's not the correct word choice then it's a safe bet wary is the correct possible alternative hope this helps you out!
Poseidon is his father and he feels abondoned from him and he also knows that he left him when he was little please please ask me more aabout percy jackson if you need help greek mythology is my fav:)