从情节的角度，我可以看到两个赫敏爱上了罗恩而不是赫敏的原因。第一，赫敏爱上哈利会毁了他们三人之间的友情。第二，赫敏和罗恩的关系推动了书中一些情节的发展。
赫敏爱上罗恩而不是哈利，使他们三人宝贵的友情得以继续。
我们重点关注一下赫敏和罗恩这一对组合在哈利的生活中的角色。赫敏和罗恩在书中起到了重要的作用——不只是搞笑的朋友。他们是哈利真正的家人——会做所有家人一块做的事。不论发生了什么，他们都在哈利身边。他们三人的朋友关系支持着哈利与伏地魔等邪恶的力量战斗。
如果赫敏爱上了哈利，就会变得很奇怪。可能会出现两种情况。第一种，哈利不接受赫敏的感情，赫敏被拒绝而备受打击，会抛弃他们三人的朋友关系。第二种，赫敏和哈利在一起，剩下罗恩一人孤独的围绕在他们身边。不论是哪种情况，他们三人的关系都会变得不稳固，使哈利精心维护的支持力量受到威胁。
那么，为什么是罗恩？为什么不是维克多？为什么不是马尔福？
赫敏和罗恩在性格上互补。
书中的浪漫代表不了真实生活。爱情关系变成了推动情节发展的工具。性格，能不能合得来，时机和其他普通的细节都变成了第二位的。在任何一本好的书中，恋情都应该推动情节发展，而不是作为一个不错的支线。
赫敏和罗恩作为相反的力量存在在哈利的生活中。赫敏提供冷静清晰的逻辑，而罗恩提供可能带有危险的热情。他们在一起并且联起手来，使得阴阳平衡。赫敏使罗恩不那么冲动，罗恩带赫敏走出了纯粹逻辑的无聊世界。
他们的关系确实会影响三人的友情，但是罗琳不会允许这些发生。赫敏和罗恩还是哈利最重要的朋友，并且永远对哈利忠诚。他们的关系巩固了他们对哈利的贡献，而不是损害哈利的力量。
他们真的是理想的情侣吗？或许不是，但这是虚构的！
最后贴一段原著
"Are you all right, Harry?" Hermione asked, peering at him over the tip of her quill.
Harry gave a halfhearted shrug. In truth, he didn't know whether he was all right or not. "What's up?" said Ron, hoisting himself up on his elbow to get a clearer view of Harry. "What's happened?"
Harry didn't quite know how to set about telling them, and still wasn't sure whether he wanted to. Just as he had decided not to say anything, Hermione took matters out of his hands.
"Is it Cho?" she asked in a businesslike way. "Did she corner you after the meeting?"
Numbly surprised, Harry nodded. Ron sniggered, breaking off when Hermione caught his eye.
"So -- er -- what did she want?" he asked in a mock casual voice.
"She -- " Harry began, rather hoarsely; he cleared his throat and tried again. "She -- er -- "
"Did you kiss?" asked Hermione briskly.
Ron sat up so fast that he sent his ink bottle flying all over the rug. Disregarding this completely he stared avidly at Harry.
"Well?" he demanded.
Harry looked from Ron's expression of mingled curiosity and hilarity to Hermione's slight frown, and nodded.
"HA!"
Ron made a triumphant gesture with his fist and went into a raucous peal of laughter that made several timid-looking second years over by the window jump. A reluctant grin spread over Harry's face as he watched Ron rolling around on the hearthrug. Hermione gave Ron a look of deep disgust and returned to her letter.
"Well?" Ron said finally, looking up at Harry. "How was it?"
Harry considered for a moment.
"Wet," he said truthfully.
Ron made a noise that might have indicated jubilation or disgust, it was hard to tell.
"Because she was crying," Harry continued heavily.
"Oh," said Ron, his smile fading slightly. "Are you that bad at kissing?"
"Dunno," said Harry, who hadn't considered this, and immediately felt rather worried. "Maybe I am."
"Of course you're not," said Hermione absently, still scribbling away at her letter.
"How do you know?" said Ron in a sharp voice.
"Because Cho spends half her time crying these days," said Hermione vaguely. "She does it at mealtimes, in the loos, all over the place."