How Harry would react to abuse. Not like physical or anything like that, but someone basically doing a Kreacher post DH at him, you know, muttering insults under their breath and that.
Depending on the level of the insult, like if it hurt his pride or his friend's feelings or if it was just some stupid insult like for example, "He doesn't deserve the attention, he's a prat.", something like that. If that is the case, he'd ignore it. If his friends were being insulted or if the insult went as far as saying he's no better than Voldemort, then he'll definately defend whoever is being insulted. Now if I misunderstood and this is how he'd react to someone insulting Kreacher, then he'd stand up for the house-elf, he might not have deserved it but still, he helped with the R. A. B. thing.
I also was wondering what he'd do if he fell out with both Ron and Hermione. Would he be angry or sad? Or both? I've been looking through the books but all they seem to do is nag him a bit. Would he loose his rag again after DH?
Well, and this is to me personally, it would depend on what had caused this fall out. How he felt when it happened and afterwards, he'd ten to one fell both sad and angry (at himself and them).
I don't know if that's the best answer to the second question, but i do hope that I helped!
My own question: Would Harry forgive Pettigrew as far as getting his body and burying him properly or just remembering him in some way of just being a Marauder?
(does that question make much sense??)