Well, obviously he's been bad, but not yet "evil." Him not killing Dumbledore portrays good within him. and if you watch the movie and read the last book you figure out why servus snape killed poor dumbledore
No, Severus Snape is.
half-blood prince
No he didn't.
In the half blood prince after he cursed Katie Bell
Harry Potter
Tom Felton
NO. Just sad.
He goes to the room of requirement.
Draco Malfoy, hoping that the necklace would get to Dumbledore.
Draco Malfoy is forced to try and murder Albus Dumbledore but that is not that easy.
Not in the game proper. There is a feature where you can duel against your friends, playing as various characters including Malfoy.
No. Ron and Lavender have a romance, and Harry and Ginny have a romance. Hermione likes Ron. Draco Malfoy does not have a romance with Hermione Granger.