Something about giving in without a fight felt wrong.
To write a story, I think you really have to open yourself up to the world.
One must have a good memory to keep the promises one has made.
You are not going to die, I know I said I'd let you, but I can't.
He had to fight. That's all he had. Not memories, not experiences, not skills. He had a will. And his will was to fight until he couldn't fight anymore.
If you didn't have a choice, you had to make a choice. If you didn't have options, you made some. You couldn't just let this world happen to you... he didn't see eternity. He saw this girl and this moment and this one slim chance.