If I Helped My Older Brother With Darkness, I Will Lose My Magical Power and Will Be Removed From the List of Crown Prince’s Candidate

To save my elder brother, I gave up all of my light elemental powers. When my father (His Majesty) knew I lost my powers, I was stripped of my status as a prince and sent away to a Marquisate. [I was able to save my brother so I don’t mind].

But why did my brother, who came along with me to the Marquisate, say “I want to sleep in the same bed”, does he miss the company of others?