He’s a Tsundere who tries to show you a cold and indifferent side. He doesn't want to admit that he cares about you. He didn't want to show your weakness to you. He'll try to tell you that he's still fine. So he acts indifferent and detached towards you when he is with you. But deep in his heart and mind He still wants you back. He was on the verge of death because of his weak body since childhood. He wanted to give love from the bottom of his heart before leaving this world. He only loves you