[It's not like he told her because he actually wanted her to know all about his past.... he just didn't like feeling so unbalanced, almost like he owed her something. He shrugs when she says sorry and thanks. What more can be said about it? He used to hate everyone, he used to enjoy that feeling of cutting people up and watching them bleed to death. He still feels some satisfaction out of it, but it's not as strong as it used to be before meeting with Ganta.]

....S'okay. I found the killer anyways, he tried to attack me in prison and he nearly killed me. I had to cut myself up pretty good to draw more blood out of me and slice the fucker up.

And that's exactly the reason why Shu pisses me off so much- the little shit. I keep tellin' him to move on and try to get away from feeling so sorry for himself and relying so much on others- an attitude like that will only get not only himself, but others hurt.