Lemonfix
Refugee
Saracene said:One theory I have, if Snape really did go back to the good over his remorse for what happened to Harry's parents, could it be that he had feelings for Lily, Harry's Mum? I know he called her a Mudblood in the memory Harry saw, but if you went by that memory alone Lily and James had as much chance of ending up together as snowball surviving in hell, yet they did eventually. And although Snape always says nothing but hateful things about Harry's father, did he ever badmouth Harry's mother? I know it's all probably far-fetched, but I just can't see why else his telling the prophecy would turn out to be the biggest regret of his life - provided that it really was, of course.
People have speculated that Snape may have had a thing for Lilly Potter, and when she was killed Snape blamed himself and left Voldy. Of course he was mean to her in the memory, but that could have been his way of hiding his true feelings. It could very well be a possibility.