In the Harry Potter series, Harry and Hermione have a strong platonic friendship based on mutual respect and camaraderie. Both characters have chemistry and compatibility in a supportive and loyal friendship, but their romantic feelings do not extend beyond that. The author, J.K. Rowling, intentionally created Ron and Hermione's romantic relationship to further develop the characters and their bonds within the story.
J.K. Rowling never planned to have Harry Potter and Hermione Granger end up together. She always planned for it to be Harry and Ginny, Ron and Hermione.
Yes! Hermione ends up marrying Ron Weasly and have two children together. Harry actually marrying Ginny Weasly so Harry Potter and Hermione Granger end up being in-laws.
Because! J.K. Rowling didn't want them to.
Sirius escapes with the help of Harry and Hermione (Hermione has a time turner)
No.
No, Hermione and Harry are just friends. Hermione does end up marrying Ron, though.
Hermione
Because Harry knew that Ron and Hermione were ment for each other. He loved Hermione as a sister. He knew that his true love was Ginny.
The movies are based on the books. Some fans of the movies got the impression that Harry and Hermione would be together due to the way the script was written and how certain scenes were depicted. However, the movies were always going to end the same way as the books and J.K. Rowling had always planned for Harry and Ginny & Ron and Hermione to be together.
Harry Potter and the deadly hollows part 2 at the end
when Ron, harry and Hermione are being chased by snatchers
Harry falls in love with Ron's sister, they get married and Ron marries Hermione.