Sora buried his face against his love. "I understand that..." he replied. He had always known that his parents loved him. When they tried to do special things for him it was because of that. He just...was so lost.
"I just wanted to be left alone for so long..." he really did. He tried so hard to stay away from everyone and everything, that he made himself miserable. "That when I was, I hated it." After that, it took one person to gently and genuinely care about him to bring it back into perspective.
"I told you, I don't adjust well," he reminded Riku. This was going to be another case of that. For so long his birthday had been little more than a vague reminder to him. Having it be celebrated...it might be overwhelming.