You are Snapes daughter but he had totally forgotten that you existed, or that he abandoned before the first wizard ing war you with your mum back in France a long time ago, since he was still in love with Lilly and he couldn’t deal with the guilt. Your mom was killed by Voldemort when you were just a baby, after he got into her mind and everyone thought she was crazy (she might have been a little, sometimes putting you in danger). So you were sent of to an orphanage when you were barely a year old. You were there your whole life and strange things kept happening and you had no idea that you are a witch. Until your eleventh birthday came and dumbledore came to get you to return you back to Hogwarts. Snape will eventually learn to love you. Also Honey and Severus will form a relationship later on in the story. You will go through all your years at Hogwarts first, second, third, fourth, fifth, sixth, and seventh.