Cho Chang was Harry Potter's first love. He first had a crush on her after seeing her on the Hogwarts Express and in a Quidditch match. In Harry Potter and the Goblet of Fire she turned him down to go out with Cedric Diggory. In Harry Potter and the Order of the Phoenix she was a member of the D.A. and they finally go out but it ends disastrously and they just fall apart. In Half Blood Prince she and Harry Potter are extremely awkward and can barely talk to each other. It goes to show you love at first sight doesn't always end the way you want it to.