I'm in the same boat. In fact, OotP came out only a month and a half after my mother's death and I was very much the angry teen trying to cope. I picked fights with my dad relentlessly and acted like I hated him--and in a way, I did at that time.

Harry's actions were sensible to me and I never hated him for his attitude. Those who do, the vast majority of fans it seems, don't understand and what's even worse, they don't care to. Yes, Harry wasn't being the nicest, and his depression are not excuses or justifications for his treatment of his friends, but it's understandable and forgivable.

JK did a really wonderful job depicting trauma in a way most people tend to write off.