Final

"Was it selfish of me to want him to stay? Maybe. But, I don't know if I could bear it if he left. I wish he would hate me. It would make him harder to love."

Ten years is a long time for someone like Levi. He can barely believe that Eren has chosen to stay with him for so long even if it had originally been against his will. He had long let Eren choose his path, but the young soldier stays. It's a blessing to Levi. And yet, he harbors a deep secret he doesn't know if Eren has realized or whether the young boy's memory has blocked it.

Levi remembers though. And it's something that haunts him.

Levi is the one who killed Eren's mother.