Head Cannon

Head Cannon: Sparrow is closed off until meeting Hammer. Hammer is kind of really the only person who consistently tries to get a reaction out of them, always poking always talking. They got flashbacks to the night Lucien shot Rose when Hammer screamed "no!" When her father got shot. This is the first time Sparrow deeply empathizes with someone else, and thus, apologizes for her loss at the golden acorn ceremony/funeral.

Sparrow's first friend, and because of Hammer, later on in life Sparrow is able to become best friends with Walter.

Note: this is my version of Sparrow with what I can gleam of character between the lines. It's perfectly ok if anyone doesn't agree. I post for discussion and to share. ❤️