Ok, so I know im probably not going to be convincing the likes of RupertLover or TheSun with this, but I feel it's necessary in order to give my argument more substance. So here they are, my OOTP quotes (GOF may be coming in the future). By the way Hermione7 - you posted a great argument before, i totally agree with you!
(all page #'s are from the US version)
"Followed by an even louder shriek, and his vision was compleatly obscured by a large quanitiy of very bushy hair - Hermione had thrown herself into him in a hug that nearly knocked him flat" - pg 62
(the fact that she THROWS herself into him is very important, i believe it shows the extreme emotion that is in their relationship).
"'Whats the matter?' asked hermione" - 221 (if you read through OOTP hermione is constantly doing this, always concerned for harry and asking whats wrong. you may take this for friendship, which it partly is, but the fact that shes always doing it is a little suspicious).
"well im glad you listen to Hermione Granger at any rate" - pg 249
(it's professor McG who says this. This relates to that part of harrys brain that always talks in hermiones voice, more on that later)
"Oh for heavens sake harry, you can do better then HER" - ph 262 (reffering to cho..... HM... interesting yes? As a girl i know what it's like to have the boy you like daiting or even liking someone else. the basic attitude that i get in those situations is expressed here, the jealously and dissapointment in them)
"'Listen, you can help me if you like, it's quite fun, I'm getting better, I can do patterens and bobbles and all sorts of things now'
Harry looked into her face, which was shining with glee - and he trailed off to the boys stairs, leaving her looking slightly dissapointed behind him"
(Hermione wanting to get attention from harry, dissapointed when she doesnt get it)
"He imigined trying to conceal from Hermione that he had recieved T's in all his OWLS and immediately resolved to work harder from now on" - pg 311
(not wanting to dissapoint hermione, soo key)
"'We need to know what it's r-really like... facing him...facing V-Voldemort'. It was the first time she had ever said Voldemorts name, and it was this, more then anything else, that calmed Harry". - pg 328
"Not for the first time, a voice very much like Hermione's wispered in his ear :reckless" - pg 387 (In the begining of the series harry acted only as he wanted to, impulsivly, not taking much into account what hermione, or anyone else, thought. Now it is clear that his mind set is changing, and hermione is playing a vital role in his unconcious thought process).
"of course you're not" - pg 458 (this is hermione's response when ron asks harry if he's really that bad of a kisser)
"And then she [Cho] turned into Hermione" - pg 462 (i believe that, like many of Harry's dreams, this is foreshadowing, it's showing the change in feelings and interests shifting from cho to hermione)
"'I know you're in there' said hermiones voice. 'will you please come out? I want to talk to you'. 'what are you doing here?' harry asked her, pulling open the door as buckbeak resumed his scratching". - pg 498
(There are 2 very signifigant things here, one being that everyone in the house, including ron and ginny, had tried to get harry out of the room and couldnt, only hermione could. the other is that harry is locked on the room with buckbeak, the greek symbol for love, and is mentioned right as hermione successfully gets harry to come out.)
"Oh you'll talk to Hermione Granger!" - pg 562 (Cho being jealous of the closeness that Harry and hermione share, maybe seeing something there that they dont yet?)
"'And it might have been a good idea to mention how ugly you think I am too' Hermione added as an afterthought. 'But I dont think you're ugly' said harry bemused. Hermione laughed" - pg 572
"Hermione kept asking him what was wrong whenever he fell silent" - pg 636
"'that was a really horrible trick of hermione grangers' said cho. ' I think it was a brilliant idea' said Harry coldly. 'Oh yes, I forgot - ofcourse if it was darling hermione's idea'". - pg 637 (again, the jealously of the girlfriend, harry defending hermione, and cho possibly seeing something they dont yet).
"He also suspected that part of his mind, the part that often spoke in hermione's voice, now felt guilty" - pg 682 (again, as i stated before, she is becoming part of his unconcious mind, and is always in his thoughts).
"Hermione walked right into him and was knocked over backward. Harry caught her just before she hit the forrest floor" - pg 688 (as hermione7 started before, here is that protectiveness of hermione that harry innatley has)
"Grawps hand had shot out of nowhere toward hermione - harry seized her and pulled her backward behind the tree"
"'Bad boy grawpy' harry heard hagrid yelling, as hermione clung to harry behind the tree, shaking and wimpering"
- pg 696 (again protective, and hermione feeling safe with harry)
"Harry laughed just as Hermione came running up behind them. He stopped at once, in case it annoyed her" - pg 718
"Even through his anger and impatience Harry recognized Hermione's offer to accompany him into umbridges office as a sign on solidarity and loyality" - pg 737 (I just love that quote, i think it's obvious why)
"Harry grabbed Hermione and pulled her to the ground" - pg 755
"Hermione had been dropped too, and Harry hurried toward her" - pg 757
"Hermione gripped his arm tightly" - pg 758
"Harry and Hemrione moved INSTINCTIVELY together, peering through thr trees" - pg 760 (Key word there, INSTINCTIVELY!! They both know to go to eachother when they need support, protection, or comfort. they didnt even have to think about it, it was instinctual...natural..)
"Hermione grabbed Harry's arm as though frightened the floor might move too, but it did not" - pg 770
"He seized a handful of hermione's robes and dragged her forward one arm over his head as chuncks of shelf and shards of glass thundered down upon them" - pg 787
"and now pointed his own wand at hermione, who had crawled out from under the desk to get better aim. 'avada - ' Harry launched himself across the floor and grabbed the death eater around thr knee, causing him to topple" - pg 789
"He had a hand on Hermione's shoulder, which was still warm, yet did not dare to look at her properly. 'Dont let her be dead, dont let her be dead, it's my fault if shes dead...' 'Hermione' harry said, shaking her, 'hermione wake up...' 'Dats a pulse harry, I'b sure ib is' Such a powerful wave of relief swept through harry for a moment he felt light headed" - pg 795 (This shows how much hermuione means to harry, how he stops in the middle of a battle, while his other friends are in trouble as well, and goes to hermione, only caring if she's ok).
PHEW!! well thats all my best ones from OOTP, im sure you guys are going to write back saying how you dont believe me or agree with any of these, but whatever, this is actual textual evidence, so it doesnt get much more solid then this.