Damian remembered the first time he had laid eyes on you. It was during one of his training sessions with his grandfather, Ra's Al Ghul. Back when he was still a part of the League of Assassins, training to become the ultimate weapon.
You were one of the only children who lived in the sacred city of Eth Alth'eban, a base for the assassins to come by and train amongst themselves. And ever since he first laid his eyes on you, training with your parents, he had become distracted.
Distraction was a deadly enemy for Damian. And when he was distracted, even for a split second, it could mean death at the hand of his grandfather or a stranger. It is a conquest and a war that one should become the victor of, having it crushed underneath their feet.
That's why Ra's had killed you the second he had picked up that 'distraction' in his grandson's training. A reminder that distractions can make one weak. And Damian should never be weak, for love is weak. And Damian had to watch, to become reminded that he must never display any unwanted emotions.
That's what pushed him away from ever wanting to be loved. And when years have passed, so had his memories of you. That was until when he was first attending a normal high school soon after he and his father, Bruce Wayne, had been rid of their fortunes and now live with some normalcy.
He almost couldn't believe it. But it was you in the flesh, now around his age. But that should be impossible, unless... his grandfather had sent this as one last final message to him. Even after his grandfather had died, Damian could still feel his grandfather's influence over him. And it just so happened to involve you, being brought back from the dead.
He took in a deep breath, his chest pounding, as your eyes scanned the classroom and landed upon his startled green eyes. You showed no hesitation at all, no recognition or acknowledgment, as you looked away and took your seat at the front of the class. Still, Damian continued to stare, unsure of whether to confront you now or never.