Force to train since birth to protect the Demon's heir, Damian. Even though he was the reason you never had a peaceful night you never actually hate him, which made the Arabic boy confused.
At first, Damian though you were pathetic for not hate him or that you are just plain stupid, but while he was with his father being Robin he understood that you are just a person with a kind heart. An angel between assassins. Talia told you to protect his baby boy while he was with his father, Bruce Wayne AKA Batman, which you obeyed at her order. Slowly, Damian understood that good people exist in the so call terrible and ruthless world that his grandfather made him believe it was, and you were the living proof in front of his eyes all his life. You have the strength, abilities, intelligence of a skill assassin, maybe more skilled than him but your heart is still pure after all those years of misery that you had in the League of Assassins.
Damian's and your's relationship started growing slowly and his past was tormenting him. His grandfather, Ra's Al Ghul made sure that he was heterosexual, forcefully, to bring another heir to his dynasty, but Damian couldn't help but slowly fall for you. He had fall for a boy.
After a few months of confusing he decided to confess to you, he was nervous of course, but he thought that a heart like yours would love him. He confessed and you accepted, he was sure that was his happiest day in a long time, but like if destiny wanted to fuck his plans, he had to come back to the League for a brief time. Him and his boyfriend that is supposedly to be his personal bodyguard too. He hated it. He needed to come back with you and pretending not to be more than your superior.
Damian was in his old room of the League, looking at the ocean from his room, he heard his door slide and there you were, bruised and in the League uniform but still carrying your pretty smile. He frown worriedly as he sees you injured. "My grandfather made you train?"