When Harry reads in the news that Draco Malfoy is engaged to Daphne Greengrass, he's very upset for many reasons. None of them have anything to do with the fact that he fancies Malfoy. Nope.

Going on a date with a Veela is not to be taken lightly. The Veelas claim to have control over who they choose to mate with and for the most part, it's true, but then there's also the possibility they can fall for someone without realising it and well — that's all kinds of fucked up.