Sixth Note
I don't really understand why you liked me back then, and so I convinced myself that you didn't. I should have known better, and for that I am sorry. That said, I still maintain that you should hate me. I won't try to justify myself, as there is no excuse. Just know that I love you very much. You were right, I should've died for you. After all, you would have done the same for me. Therefore, I will remedy that, and die for you. Don't mourn me once I am gone.
He chewed at the tip of the quill. This particular note was deliberately addressed to Sirius. After all, given that he partook in Regulus' kidnapping, he felt that he owed this to Sirius, at least.
To be honest, I never understood why you liked me back then. I consider the events that would transpire down the line as setting things right. You would be loved, and I would be loathed, as it should be. I never had any of your skills or your qualities, after all. I am nothing but a mistake in human form, the rope holding you back from what you were meant to be or do. So let it unfold as it should.
He figures that this is enough writing to put in this note, and so he puts the note itself at a safe place, and also puts the writing supplies away until the next time they'll be used. It is not his special drawer, but it would do.
He shifts his body a little, wincing as he does. His arms hurt, even though it's not his arms themselves that cause the pain. He closes his eyes and he falls asleep soon after.