Who does don john not like?

Don John, a character from Shakespeare's "Much Ado About Nothing," harbors a deep-seated resentment towards his half-brother, Don Pedro, and his friends, particularly Claudio and Benedick. His dislike stems from feelings of jealousy and bitterness over his status and the affection others receive. This animosity drives him to manipulate situations to create discord and undermine relationships among the play's characters.