It's actually pretty safe to assume harry is still extremely pissed at peter. realization that his father was the goblin aside. there is still the fact that he now knows peter killed his father, still sore that he stole maryjanes love. And the biggest point that he would be pissed....They are supposed to be best freinds, but after the doc ock battle, Peter should have gone straight back to Harry to explain things to him, to talk to his bestfreind. Not go home and pout like a little ***** for however many days he was there untill The wedding. That seems liek a pretty big oopsie. I'm sure oveer time of the movie harry will realize it's not peters fault, but for a while there will definatly be major hostility. Pete totally dropped the ball on not going back to Harry to tell him the truth of what happened, it may have solved the whole issue between them. "Harry, i'm Spiderman, your father was the Goblin, his death was an accident. You know i've always loved maryjane, yaddayaddayadda" But naw, he just goes hoem and forgets, if i was harry i'd be pretty pissed off too.