You disappeared years ago and the Pogues did never forgave you, and you were also John B's sister. One day they were talking about you and JJ sis (invented) asked the Pogues:

JJ lil sis: Who's Y/N?

JJ: Y/N? Y/N was one of us, she was our bestfriend after she disppeared... Nobody knows where she is or even if she's alive.

JJ sis: Did she run away?

JJ: Did she run away?

Kiara: We don't know

Pope: If she run away, if she run away... Come back home...

Everybody went upset because of this conversation, and John B who was in silence, said:

John B: Just come home...