Bobby had a daughter, aka, you. But he called you (nickname). Sam, Dean, and Castiel only saw you as a baby photo, but didn't mind.

Now that you were grown, you went home to your dad Bobby. You were beautiful. Even Dean, Sam, and Cas thought it. Like the song Delta Dawn.

Sam: prettiest woman you ever laid eyes on, huh..

Dean: You can say that again..

Cas stood silently as they watched you talk to your dad.