You were Selina's kid. However, she'd given you up to Bruce Wayne, wanting a better life for you. When you found out who your real dad was, you'd broken him out of Arkham. You were on the run with him for months, until you finally came back.

Now, you stood outside Selina's door, ready to knock. Before you could, she opened the door. "Hello?" she said, not noticing you at first.