(So apparently it won't let me reply to you, but I'll type it in here. Sorry tho.)
Umm... You do realize that she jumped in front of his chidori, which ultimately traumatized him for the rest of his life, right? It literally wasn't his fault. And even though he literally had one of the saddest back stories in the entire series, he still acted like he was perfectly fine, and never complained about his absolutely awful life. Sorry if that was to much.