You've got a most interesting story, there, with lots of room for growth should you so desire. It appears that Severus Snape now recognizes something all too familiar to him in Harry Potter; what he ends up doing about it could make quite a story as I can see several courses of action, each with different reactions.
Author's response
Thanks so much for the review! Unfortunately my fic is a one-shot, as I've never had the stamina to write a whole chapter fic >< Thanks for the insight in your review, though; I wonder, what steps would he take?