Sebastian had never really thought of himself as a villain. Sure he knew what he was doing was wrong in the eyes of other people, but did that make him a bad Shadowhunter? A bad person? Not in his mind. But now that he saw it there, in her eyes, he thought that maybe he was, a little bit. But his end was in full swing now, no going back.
Even for petty emotions.
"You wouldn't be able to understand, so I won't try to make you." He coughed. The sword wound in his chest was making things hard to say, but Sebastian had to try. Had to.
"Clary, listen. My reasons are my own, but I want you to know at least one. I….love…you. That has always been true, even before I heard about you. You're going to think it's just the demon blood talking, but it's not. If all my humanity was to be burned out, it would kill me. So that means I still have room for emotion. No, don't interrupt. Clary, I only have so much space for emotion in my shriveled heart, and as your brother, I never had much choice but to use all of it for you.
"Jonathan-"
"NO! No Clarissa. I want to die in peace, knowing that you won't make excuses to say that you don't completely blame me. Cause I know you could never feel that way."
"Sebastian, I won't say those things. Yes I blame you, but I also blame Valentine, he was the real villian in this, not just you. And as your sister I have to believe that. It's in our nature."
"Good bey then Clary. "My sister, my love, my heart, my salvation."
"And thus, Sebastian Jonathan Christopher Morganstern died, in the arms of his sister.
I know, short. And I gave Sebastian a heart, but please remember that I was inexperienced and had not read COHF yet.