Dick Grayson always felt like he had failed.

When Bruce had taken Jason in, he was pissed. He hated Jason for becoming Robin. He hated Jason because he felt replaced. He hated Jason for wearing his symbol.

But when Jason has died, when he was murdered, well, Dick never forgave himself for how he treated the hot-headed boy. He had failed to be a good older brother. Dick often wondered if, had he acted different, would Jason have confided in him? Told him what he was doing? Perhaps Dick would have been able to prevent Jason's death.

When Dick found out that Jason was still alive, it was like a second chance to him. Until he found out that he had came back damaged. He believed that no one loved him anymore. That they had let the Joker live because they didn't care.

Jason was wrong, oh God, he was so wrong. Dick could count the times that he had headed off to Arkham, intending to finally kill the clown. But he never had. Dick couldn't explain why.

It killed him at first, when Tim arrived. But then Dick reflected on his past mistakes, and he tried to be the best big brother he could.

When Damian arrived, he did again.

Dick never thought that his efforts to be the best big brother would finally break Jason. That the witty banter he made would trigger his little bro.

After all, he never exactly knew what had happened in the warehouse that night.

But Dick is kinda glad it did.