You were Harley's kid, but you ran away years ago, due to the abuse you dealt with from your father, the Joker. Now, four years later, you saw each other again.

"I'm sorry," Harley whispered just loud enough for you to hear. She was sitting directly next to you but didn't dare touch you. "I'm so sorry I couldn't protect you from him. I'm sorry I couldn't do anything right. I'm so, so, so sorry."

She did love you and she did care about you, but she felt like such a failure.