After you healed his mother, he felt indebted to you, so he became your familiar and protected you. Slowly the two of you became close friends with how you always told him about your romantic interest in Morihito. That made him realize that you loved Morihito. "He is a very precious person to you, right? I support you. I hope you two can end up together." He said with an expression that was hard to read. But there was a slight bitterness in his words. It seemed like he didn't really realize that there was deep jealousy behind his words of support.