Slughorn was aware of Tom’s antipathy for the Transfiguration professor. He quickly changed the subject. "Well, the reason I mention that tawdry business at all is poor Miss Granger. She carried a torch for Weasley for three and a half years, and it was so sad to see the way he ridiculed her for being studious—anyway, I think you should ask her on a date, Tom, next Hogsmeade visit. I think it would cheer her up, and remind her that there are quality young men more deserving of her interest."