Snape's always loved Lily, from the moment they met from the moment he died. Let this be the mark of unmatched soulmates, not some childish lust.
When Harry got hit with the killing curse in the 7th book, he went to a place similar to King's Cross Station-but what happened to Voldemort while that was happening? A little OS explaining it all...
Just a short little OS for JKR. Basically, harry potter is completely true, and Mr. Shacklebolt doesn't want the muggle world to know ANYTHING about the wizarding world.