II: Harry Potter & Clock Strikes Midnight

When Harry James Potter became a star within the school, it was not at ease when things get offline as always. To what was it that they hated each other... at least, Ryou Bakura & themselves in a sad tale of why? Could this be a lie or just a simple way that they were not the same as compatible as it seems? Why must it be this way & how can this end towards the conclusion why so?