The chosen one
Ronan let Leif take over the interrogation with Irene after Percy left as he delegated the duty of deciding the best course of action to the prime minister.
He had already conveyed his thoughts and his preffered course of action to the man , but now he left it to his better judgement to execute the plan to the best of his abilities as although he was the second prince of Avalon , Ronan himself wielded very little actual political authority.
For him to take matters into his own hands was akin to undermining the law and order of Avalon and his father's authority as the king , and while he did not fear breaking the laws for when the situation called for it , for someone as docile and useless as Irene it was just not worth it.
Hence leaving the matters in the capable hands of Leif , Ronan chose to go to the terrace as he laid down looking at the starry night sky where he drifted asleep.