She knew that messiahs are usually also martyrs. But she also knew that no one would have protested if a mudblood who never wanted anything except to save her best friend had suffered in this messiah's stead.
Because the best way to get back at Hermione Granger for punching you in the face is to steal her school trunk on the last day of the year.
'Ginny was huddled in her corner looking nearly as bad as Harry felt.' This is my interpretation of why Ginny was disturbed by the Dementor attack in PoA. Ginny/Riddle if you turn off the lights and close your eyes.
There was a song on. So they danced. SPOILERS FOR HPDH1!