Reincarnate as a Strategist

In his previous life, he was the emperor's favorite legitimate son, with a kind heart and a high position, but he was deeply in love with the scheming Princess Xian. She planned every step, causing him to fall into a trap and die at her hands. In this life, her life was shortened for decades and she was plagued by illnesses. He abandoned his dignitaries and lived alone in the palace. He did not ask about government affairs or visit his ministers. Apart from looking for a good husband for her and running around here and there, he is basically an idler. But for some reason, she became weird and thought of ways to enter the house, which made him very worried...