I think I have figured out why Harry and Hermione never happened.
It's because J.K. Rowling isn't so great at writing about romance. I mean she's a great writer when it comes to action scenes and overall adventure. But when it comes to couples and romance she kind of fails. If you think about it, Rowling seems to have just taken the main characters and slaped them together without much of a great build. Some may argue that Ron and Hermione were always bickering and arguing and that they were hiding their true feelings and other blah stuff like that but in reality the people who always bicker...

Hermione:RON RONELD WEASLEY I AM TALKING TO YOU.
Ron:what do you want to tell me that you and harry are going to makeout huh.
Hermione:huh huh (tears running down her her cheeks)
Ron:hermione don't cry but if you are then I have to tell you something I like lavender so I'm breaking up with you for lavender sorry.
Hermione:huh sniff you know what Ron fine I don't care just leave.
Ron walks away
In the boys room
Harry:I hope hermione and Ron are okay
Slam huh can't believe him
Harry:Ohooh I know that voice.
Harry enters the girls room
Harry:hello anyone here I heard someone come in.
Hermione:oh (huh)sniff...

I'm not sure if anyone else did this :/ If not YAY if so I'm super sorry........Credit to shorttext.com

1. She was the first one to fix his glasses.
2. And always will be.
3. A great wizard deserves the brightest witch.
4. She knows what he’s thinking.
5. She knows more about him than he does.
6. She’s sure his kissing is more than satisfactory.
7. He thinks she’s brilliant.
8. “She didn’t something she had never done before…”
9. “… And kissed him on the cheek.”
10. We must all face the choice between what is right and what is easy.
11. She never misses his quidditch matches....