Ron wasn't sure how he felt about Hermione's new friend. Until a few months ago he'd thought Hermione the only person crazy enough to ask for extra work.
Yet, every day, the Hufflepuff rushed in to study medicine, or pull out a book on Runes, (or Arithmancy! Who reads that?!) It was enough to turn his stomach.
She never even seemed to do any of her homework! She was failing Herbology (who failed Herbology?) and had detention with Snape twice that week!
...she was the most over-achieveing slacker Ron had ever met.
He was kinda impressed.