Disclaimer: No, I don't own Harry Potter, surprising though that may be. JK Rowling owns the character, I'm just expanding on what she provides.
Chapter 2 – Trio no Longer: By request, I decided to make another chapter; there will be a few more as I explain each person's reactions. I tried to stay true to character; Hermione upset because she should have known, and Ron showing true Weasley temper. No swearing in this one but mention of character death and reference to child abuse.
HERMIONE
How could we not have known? Why did nobody realize? I was so stupid. I knew you feared and disliked touch. I knew you were always too thin after the holidays. I knew you had nightmares. I knew you were grieving. But I never knew it was that bad. I never opened my eyes wide enough to look for the signs, not in you, the savior. I should have guessed. I just didn't think, I never thought you'd end it. I never thought you were that broken. I always thought you were so strong.
This is all my fault. I should have asked you about it. I should have questioned you on how you felt after Sirius died. I bet you were feeling guilty about that. I bet you blamed yourself. I should have made you talk about it. I should have found out the truth. Oh if I could change things now. I would. I would go back in time and alter the past. I would bring you back. I wouldn't have you blame yourself for Sirius. I would have been there for you.
What was is Dumbledore said; something about abuse? Did he mean it was worse than you not being fed a lot? Did Dumbledore not know? How bad was it? How badly were you abused? Was that why you ended it? Was it the abuse? I should have asked you about this too. I could have helped you through it. I should have known about the abuse. I should have been a better friend. I can't believe I was so ignorant of your problems. Did Ron know? Did Ginny know? Did Sirius know? Did you ever tell anyone? Or did everyone know? Was I the only one left in the dark? Some friend I was.
I shouldn't be feeling this guilt. Yet maybe I deserve it. Is this how you felt? Am I just getting what I deserve? I am to blame for this. It's all my fault. This is justice, the way I feel. It's tearing my up side, yet I know it must have been worse for you. It must have been hell. I deserve this pain. You shouldn't have had to go through that pain alone. I didn't help you when I could have. I was so blind.
RON
Why the hell did you do this mate? I just don't get it. I thought you were stronger than this. I didn't realize how much you were hurting. Why didn't you come to me? Why didn't you tell me how you felt? Maybe I could have helped you. How are we ever going to win the Quidditch Cup when we don't have you as our seeker? What am I supposed to do now? I thought you were my friend. If I had have known you'd give up then I would never have befriended you. Gryffindors are supposed to be brave. You weren't. You were a coward. When things got a little tough you just gave up.
Now what do you want me to do? Am I supposed to pick up the pieces and pretend that everything is okay? Am I supposed to tell Ginny that everything will be okay when I know that her broken heart my never be healed? Am I supposed to comfort Hermione because she is so upset? Am I supposed to do all this because you were too piss-weak to face your fears and live up to your name? You have put shame to the name of your mother. She died for you to live. And then what? You just end it because things get a little tough? You're not the person I thought you were.
Did you only think of yourself? The whole wizarding world was relying on you. Now what are we supposed to do? We have no savior. We are doomed to the Dark Lord's reign. All because you were too afraid to face up to your destiny. I know you were upset about Sirius. All's fair in love and war. This is a true war and people will live and people will die. He died for you. Just like your mother and father did. They died so you could live on and win this war. They died for you and then you went and claimed your own life without a backwards glance. Do you even care about the wizarding world at large? Do you even care about our futures? About Ginny? About Hermione? About Neville? About me? You don't seem to care in the slightest, if you cared, you would be here. You would be standing beside us in this war, not hiding away in cowardice. I thought you were better than that. I thought you were a true friend. I thought wrong.