I agree with most of the posts that I've read here (particularly Krisharose's), and I think that Allie brings up an interesting point regarding the 'shallow' boggarts - it's a good point and worth thinking about.
That said, I still feel that JK is guilty of retrospective writing and character re-configuration.
For the record, I enjoy reading about romantic tension, witty banter (as opposed to childish bickering), sauced up with a touch of comic antagonism and misunderstanding. "Pride and Prejudice", "Much Ado About Nothing" and "When Harry met Sally" are effective examples of this kind of dynamic. Generally, the 'opposites attract' scenario operates along the lines of two characters who initially misunderstand each other, only to later come to a point of clarification where they know, understand and accept each other better. Or, we have two characters who clash, only to find themselves in a set of circumstances which highlight their ability to work together despite their differences;
or, they discover that far from being a liability their differences are actually complementary and beneficial to them both. They (and we) discover that beyond the initial impression, that they are indeed a match.
(Now, can anyone in here honestly say that this is what has occurred between R/H?

)
Either way, all of the above scenarios are heavily dependent upon a process of
gradual revelation and underlying development. Strip beneath the layers and you discover a form of interaction that transcends the surface fighting and misunderstanding.
The conflict (
however it may be expressed) is supposed to signify an
existing, underlying relationship - it's not supposed to
be the actual relationship!

But I think that this is precisely what we have on our hands in HBP, with JK weakly trying to pass off the mere signs of romantic interest (tension, bickering) as an actual relationship. Bickering alone cannot substitute for a developed relationship. I've heard the argument time and time again that the bickering indicates that they are attracted to one another, but it seems as if JK never bothered to direct a key question at R/H - namely - "d'ye think they're suited to one another".
Even if attraction (and I still have my doubts on this because, I still can't see what it is that they even like, appreciate or are attracted to in one another) was present - all that indicates is that they apparently 'want' each other - or if the jealousy that raged through in HBP was any indicator - that, they didn't 'want' the other one
to end up with someone else ( - a type of sour dog-in-the-manger behaviour that isn't exactly a glowing reccommendation as to how they feel about each other. What can you really say when someone is only moved to take an interest in you
when it appears that someone else is interested? Why are they not simply interested in you all along, without external threat or motivation?

)
At any rate, wanting each other doesn't resolve the key dilemma of whether or not they suit one another. To me, JK has in no way proven that these two work together and has confirmed what I have suspected about this pairing.
As always, I was left asking what I have always asked concerning these two - where oh where, is the
relationship? I'm not even talking about romance here.
Strip away the fighting, the insults, and the toxic attempts to degrade one another and what do you have? Something static and non-revelatory.
Seriously, how
do these two interact outside of tearing strips off one another? Does anybody have any idea what that would be like or look like - R/H simply talking, enjoying each other's company or interacting in a useful way? (We're 6 books into the series and I haven't read anything that satisfactorily answers this question, beyond the odd, fleeting instance of a ceasefire.) We've never even seen Ron and Hermione have so much as a single proper conversation yet we're supposed to believe that this is a 'relationship'?
JK's seeming inability to present R/H interacting outside of constant fighting, suggests to me that it was all lights and mirrors at the centre which lies a big, blank of nothingness that she has no idea what to do with.
R/H - oh yeah. They fight and...well - that's about it. All of the apparent fireworks and bickering have just been a big smokescreen covering up the lack of development and the subsequent void. I've come to the conclusion that really, there's nothing more to R/H which makes it so hollow and weak. As an author JK has chosen this as her central relationship, which is her choice, yet I can't understand why she has failed to imbue it with some variety and nuance so that we can see that this relationship is more than a tired, one-trick pony played for laughs. Has it not occured to her that her readers (even those who are not R/H supporters) would like R/H do something other than abuse and torture one another? That we might be curious to see what an actual R/H
relationship would be like? That, we think it's time to move on and actually show us something
new here?
I really couldn't agree more that with H/R we are witnessing a forced, long-suffering, and stagnant dynamic. I also think that JK has simply written herself into a corner with these two. She has relied upon the low expectations of her readers, presuming that they will continue to take it for granted that the repetitive bickering is an evolving relationship on to itself. But I am not convinced.
As Krisharose pointed out, we've had
6 books of the same tedious, unaltering, charmless pattern of interaction between the two - namely that they fight, insult each other, can't agree on anything - a pattern which we have seen since they were 11 years old. They're sixteen and they still interact in pretty much the same damaging, unappealing way. Yet we are apparently supposed to be seeing signs of development and maturation here. Where? (I suppose JK could suddenly have R/H actually treating each other like human beings in book 7, but by then that will be too little too late, after 6 books full of this prolonged, apalling nonsense between them.)
The only new 'development' is that they now go out of their way not only to hurt each other, but are sadistic and selfish enough to drag other people into the crossfire (McClaggen andLav Lav) without compunction and in a cold-blooded, calculated fashion. It seems as if JK's notion "changing things" was to give us more of the same, but only to an exaggerated degree, with a side-serving of sadism. But how does simply taking a pre-existing dynamic and then thinly stretching it to OTT dimensions qualify as 'development'?
I have the strongest suspicion that the reason why we haven't seen any genuine development or maturation between the way that they interact is because there isn't anything there
to develop.