Ron hadn't ever really thought about it that way. He'd always felt like his Prefect duties were a chore and never once thought of them as an opportunity to spend time with Hermione. Not to mention Hermione never would have bunked off rounds just to spend time with him, but he didn't mind that so much. And if he hadn't spent so much of sixth year with Lavender he supposed it may have gone a bit differently with Hermione, but all that didn't really matter now.
What did matter was that Percy Weasley was telling him that he had shirked his own duties to spend time with a girl. Of all the things in the world, this was the most shocking thing Ron had ever heard about his brother. It had been hard enough to believe that Percy had had a girlfriend to begin with, but to hear that he would really neglect his Prefect duties to spend time with her was nigh on unbelievable. "You didn't. You wouldn't. I don't think I can believe that of you, mate. You're - well... you."