Harry had managed to land a date with Cho Chang, the Ravenclaws" Seeker and another member of our Defence group. I had my own doubts about that; she had been the girlfriend of Cedric Diggory up until his death at the end of the Triwizard Tournament. The way she was acting and the things she said often made me think that she still wasn't over Diggory, and she was using Harry as a substitute. But Harry, being male, couldn't read the signs warning of trouble ahead, and had agreed to spend Valentine's Day, on our next Hogsmeade visit, with Cho. It took all my persuasive cunning to get him to come talk to me in the Three Broomsticks, and he didn't have the rudimentary sense to come up with some song-and-dance for Cho, so she was quite hurt.