Harry Potter and his cousin have made up. Harry Potter's cousin dudley dursley, son of Vernon and petunia evans, is fat, arrogant and rude, bullying Harry. With the development of the story, Dudley's attitude changed. In Harry Potter and the Order of the Phoenix, the Dudley Dursleys are the only people who intend to make peace with Harry. Dudley left Harry a cup of tea before the family left home. Harry thought it was a prank at first, but Dudley really wanted to make up.