I just came in here to say I only started (and am now caught up with) this today. The first several chapters had me really curious about where this all was going, totally hook line and sinker. Then when she confessed she was a bully, I thought, well, that's a weird thing to be so extremely guilty about, but okay, let's see where this goes.
And boy did it go somewhere. I found myself crying and grieving with her.
Fully disclosure: I was a bully back in elementary school (ages 6 to 9 for you non american folk) and there isn't a day that goes by that I don't regret doing what I did for all those years. Forgiving oneself is not an easy thing to do.
So yeah, her story really resonates with me, though her bullying was derived from ignorance while I was just a stupid little shit. But I do truly regret the things I did. I also stopped doing them after I moved on to middle school because of guilt. It didn't control my life to this extent, thankfully.
All in all, this story has really come together and the author has definitely set up a very emotional tale.