Okay, so I just finished the True Pacifist ending and, after spending several moments crying, realized that Asriel is probably the most depressing character EVER. But man, I love him (platonically). So, here it is, my interpretation of his last few moments, from the True Pacifist ending. Enjoy!
Reconciliation
I'm sorry.
After all I did, how can you still trust me? I hurt you, and I tried to kill you. I tried to kill everyone. Kill or be killed.
Did I really believe that, only such a short time ago?
I can't say you gave me anything, but to say you did nothing would be a lie. I want to believe that, but I know that, without you, I would only have gone on to do worse. Horrible things. I would have hurt people who cared for me. Innocent people.
Mom and Dad loved me. They sacrificed everything when I died. I know what they lost, after all, I lost it, too. When they died, when my friend died, I lost something, and it hurt. I didn't want to believe that, even if I knew it wasn't the end. I didn't want to believe that they were gone.
I did everything I could to try to bring them back.
And I died.
Mom and Dad, I'm sorry. It was all my fault.
You lost two children.
I didn't have a soul, so I grew simply to hate everything. Everyone. I couldn't feel how much I was hurting everyone, because I myself was hurting too much. I forced myself to feel nothing.
I hurt people.
I hurt them.
Mom and Dad.
Worse, I hurt you.
You did nothing. You didn't hurt anyone. You couldn't bring yourself to hurt anything, even when faced with death. Nothing could bring you to take a life, to cause pain. To distance yourself from others. To hurt like I did. To hurt like I have.
I don't want to go back, not after everything I've done.
If you have to go, please, tell them, everyone… I'm sorry.
Tell Mom and Dad… that their son is safe… that he loves them… that he wants them to be happy…
Please, don't go. I don't want this moment to end, because… when it's over… I won't be able to feel anything anymore…
…Okay…
Please go… I don't you to see me after this ends… I don't want to hurt you anymore.
Please leave me…
I'm… I'm… sorry…