He was just talking to the apple and it would reply by moving its stem or moving slightly to indicate that it's nodding. He also defended the apple when Harry and Ron were making fun of their relationship.
Ah yes.... Fanfiction.... One of the most childhood scarring things in existence..... I've read my fair share of crash bandicoot fanfiction, I can't name one that didn't nearly destroy my childhood, oh the fangirls..... They're insane..... Or maybe I've just been unfortunate enough to only find the insane ones....
Happy reading, I suppose :P
-Jesus/Hitler slash
-Snape/Teletubbies
-Hagrid/Dobby (seen above)
And now Drapple.
Feel free to scream now.
"It doesn't matter if it's henge, I still love you."