As for the fact that Malfoy, Crabbe, and Goyle apeared to be going their different ways when they were usually inseparable, these things happened as people got older--Ron and Hermione, Harry reflected sadly, were living proof.
J. K. RowlingCurious indeed how these things happen. The wand chooses the wizard, remember...I think we must expect great things from you, Mr. Potter... After all, He-Who-Must-Not-Be-Named did great things โ terrible, yes, but great.
J. K. Rowling