Thanks for the reviews everyone! I appreciate it.
First line taken from Jiminny's journal entry about Riku in KH: Chain of Memories.
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Forgive

Baited by the darkness and used by Maleficent and Ansem, Riku once fought against Sora.

He had lost that fight. Though it was still Riku's body, fighting nearly to the death with Sora in Hollow Bastion's castle, Ansem was calling the shots from within. He possessed Riku, used him for his dark deeds, and made him fight his own best friend. He hated Ansem, but Riku hated himself even more for doing such a thing as giving into the darkness in the first place. He'd never forgive himself.

He only hoped that his two best friends were more forgiving.