Arthur was impressed with Hermione's commitment to be with Harry. Some of the things she had to do at Harry's command and hand were quite inventive on his part. Arthur idlely wondered what the two teens" reactions would be if they ever found out that the whole tale of the enchantments in their room was a total lie; that this was simply a test of Hermione's character. Of course he would never tell them, not unless he wanted to face their wrath. But it was nice to know two things. First, his son has chosen a young woman for himself who is quite willing to do whatever it takes to stay together. And second, that Harry can truly be twisted when he wants to be.