The chai is a type of hairpin with double or multiple pins. The chai hairpin also used to be a form of love token; when lovers were forced to break apart, they would often break a hairpin in half, and each would keep half of the hairpin until they were reunited.
Imagine Ed finding out that Stede has died and he ends up going to the funeral and meets Mary and Mary tells him that Stede isn’t actually dead and he faked his death to be with Ed and then he is on a mission to find Stede but Stede found out about him leaving his crew so now he is upset but the Ed says that Stede abandoned him first and then they work it out and get married and Lucius comes out of his hiding place in the ship because he is not dead and and