During the first half of the year, Blaise had been exceedingly helpful. He had spied in Slytherin to keep Harry up to date on the gossip in the snake pit. Things changed after New Year. Blaise sauntered into the Great Hall the first day after the holidays, kissed Harry's cheek, and then lounged on the bench beside him, ignoring anyone else. When Luna entered, he approached and kissed her before strolling over to the Slytherin table to flirt with a third year, completely ignoring both her and Harry.