"I won't claim that I hadn't made mistakes, but if I were given the chance to make those decisions again I don't suppose I'd change to many of them."

It wasn't only those around him that was hurting. In the process he had been hurt himself. Still, if given the choice he would still ask Shirogane to kill him, would still create Kou, would still choose to not see Shirogane...those were choices he was confidant had been correct.