It's to be expected that Bruce is always very busy. As Batman, he's busy saving the city, and as Bruce, he's busy being a billionaire, genius, and handsome.

So, with a busy schedule and other children, why would he adopt you? Maybe he wanted something normal in his life, instead of kids who try to kill him, or kids who come from the circus, or kids who come from the League of Shadows, or a kid who lost his parents to some idiot named Captain Boomerang.

You were simpler, if he could consider it that way. Your mother died during childbirth and your father wasn't able to raise you, so you went to one of the orphanages he donated to, and in search of answers about one of the caretakers, he met you, hidden behind the walls.

Bruce was apt to forget a lot of birthdays, so Alfred always reminded him, but even though Alfred warned him this time, he forgot your birthday, again.

Usually he would remember your birthday the next day, regret would set in and he would buy something expensive, like a pony or something state-of-the-art.

Something that didn't happen this time, it had been a month since your birthday and he hadn't remembered, but unfortunately he had the ability to remember his new child, Damian.

He regretted remembering Damian's birthday, after all, it was a door for you to start arguing with him. He didn't know your age, much less that you had a birthday. But he remembered Damian's birthday. Maybe it was just a coincidence, right?

"Don't be so selfish, it was just a birthday." Bruce said, crossing his arms. "I'll buy you a present if that's what it's for."

Alfred looked at Bruce and shook his head as if he whispered in Bruce's ear "Bad choice of words" and then Alfred left, closing the door, leaving just the two of you.