The Wolf's Fairy [Hogwarts Setting]

Elena Zeller is a muggleborn Hufflepuff who started out as friends with Elios Selwyn. Over the years, he transformed into a pureblood supremacist, due to which Elena began to heartily dislike him...until she found out his secret.
It is her duty to protect him now.

Elios Selwyn is deemed as the heir to the Selwyn family after his older brother left. Now he is a bully to muggleborns, left his friend for his family values, and is trying to please his father.
But then, it all went downhill he became a werewolf.
How will Elios keep it a secret? How will Elena help him?

Note: none of the characters are from Harry Potter, but I used the setting, and made my own additions in it. JK Rowling is the original creator of the wizarding world.

Also the story's pacing is kinda slow. I'm sorry abt that...but this is my first attempt at a romance, so please ignore any mistakes.