Malik
Superstar
Now the "wish fulfillment" statement makes sense. Ron was based on some childhood friend/crush and Hermione was based on her
Some random guy on CNN: http://www.cnn.com/2014/02/02/showbiz/rowling-hermione-ron-revelation/
Hear hear.
Basically, Ron is a stand in for a friend of JKR's who did not share her romantic interest, as a kid. She's admitted that he was based on her friend Sean Harris, and she's admitted that Hermione was VERY similar to her as a Child/Yound Adult/Teen.
Then this article adds the last puzzle piece. Hermione got it on with Ron because of Wish Fullfillment. Nothing else.
She also admitted that at some point he had saved her from something while driving a Ford Anglia (The car Ron saves Harry in in the movies).