Finally

A Spider-Man fanfic between Mary Jane Watson and Peter Parker

Mary Jane Watson moves to New York and lives next door to a mysterious, quiet, nerd named Peter Parker.
She finds out one day that is her old best friend she is incredibly in love with.
And her feelings come back and she becomes a different girl and
isn't the girl she was before she move to New York.

Peter Parker loses his Uncle Ben and becomes somewhat different himself. He's in love with Gwen, but when Mary Jane comes back everything changes. His feelings also come back. Those same feelings he had when he first met her. But being Spiderman is also a cost and a price to Mary Jane's life.