Who is the Half-Blood Prince?

[holden]

Right up front with y'all, i haven't read the book. My girlfriend is a big fan, though.

As amusement, i tease her a little and tell her that i know who the Half-Blood Prince is, and just pick random characters, or make up my own plotline...like "Ron was killed by Hagrid...who's really the Prince, but disguised as Hermione".

She doesn't like when i do that much.