ok here is my theorie:
in book 7 voldemort will fall madly in love with professor mc gonnagal and mac gonnagal luvs him 2, and since dumbledore loves mc gonagal he kills voldemort n mc gonagall was so angry at dumbledore that she killed him and when she killed him she ealize she would go to azkaban so she kills herself, so harry loves hermione hermione loves ron ron loves harry.
In the 4th book, Bill and Charlie don't have an own room. You know, Fred and George moves into Ron's room (with Harry); Bill and Charlie moves into the twins' room; Percy is so important he needs his room; we are not told, but can assume Ginny shares her room with Hermione.
It means there are four rooms (Ron, twins, Percy, Ginny). If this is so, when Bill and Charlie still lived at home, how were the rooms shared?
In the end of the 3rd book, Sirius sends Harry the prmission of visiting Hogsmeade. Who can see the permission? Didn't they realize it was signed by Sirius Black?