He should've realized it sooner.
"Now don't you look at me like that, Sinbad. Not when I'm…"
All the times he had shown up at his window without reason; the small injuries- bruises, the inklings of scars- he had noticed but never mentioned.
"…just as much a victim of Al- Thamen!"
He should've realized it sooner.
"I wanted to live a normal life,"
The countless number of times the magi had held out his hand, asking, begging, pleading for acceptance.
"and yet I'm the only one to blame!?"
If he had said 'yes', could this have been stopped? All the destruction he had caused, the lives he had taken?
"What, did you actually start to feel sorry for me? You really are too nice."
Could he have helped him? Given him the light and care and happiness he knew he craved?
"I really don't give a damn about that kind of thing. I'll just continue doing whatever I want, just as I always have!"
Maybe he had known all along.
"It'd be a lot more fun for us to try and kill each other."
Maybe he just didn't want to see it.