"She actually my sister by birth, you know," he mentions. Because that makes her more special to him. Special like Gaura's special. Most others in his life, friends and kindred, they could come and go and Jack might only notice briefly. But those two? No, they're not allowed to go away. They're his special ones.

"We're twins. But you can't tell it from looking at us. She'll like you. She's a good person." Unlike him.