I've found recently, from reading a lot of fics involving my favourite Harry Potter character (Draco....) is that people don't like the fact that he married Astoria Greengrass...... She's never mentioned really in the books until the 19 years later but people just seem to think that she's just like Pansy Parkinson, except blonde. This is most likely because they probably would have been happier if he was with Hermione or Ginny or Luna or anyone else but you can't really change that.... True, she and Draco probably married only because of an arrangement but.... I think Astoria was different. I have this gut feeling that she wasn't in Slytherin, but in Ravenclaw.  And she wasn't like any of the other purebloods, that she was quiet and reserved and dark haired, also that she didn't flaunt her beauty but tried to hide it. As she would have seen the changes that Hogwarts went through and maybe she would have been compassionate. No one really knows who Astoria is except J.K. Rowling but this is just my thoughts..... tell me what you think!