Snapeslove

What was the real reason for the hatred between James Potter and Severus Snape? What was the exact nature of Snape's relationship with Lily Potter? And with Frank Longbottom? What was the real reason for his presence amongsr Voldemort's followers? And what did Dumbledore and Fudge had to do with that?``In "Shocking revelations", Snape will realise that the past can't always be buried.......and Harry Potter will find out the shocking truth about his parents.....