How did Jonas change after he learned the truth about what was meant by "release"? Please use textual evidence.
Jonas is horrified when he is confronted with the videotape of his father releasing the smaller of the two twins. "Jonas felt a ripping sensation inside himself, the feeling of terrible pain clawing its way forward to emerge in a cry." His intense dismay is the result of his realization that "release" meant "kill," not a peaceful departure to another place. "He killed it! My father killed it! Jonas said to himself."
Jonas can no longer accept the sacrifices of self-awareness, of conscience, and of memories that are conditions of living in the community. He resolves, after witnessing the release, that he must get away.
He begs the Giver to come with him, but the Giver refuses. He will be needed to help the community deal with the memories that will enter their awareness when Jonas leaves, but he agrees with Jonas's plan to go Elsewhere in search of a better way of life. The Giver sympathizes with Jonas's hope that by leaving, Jonas may be able to begin a process that could lead to a fuller existence for those remaining in their community.
'Having you here with me over the past year had made me realize that things must change. For years I’ve felt that they should, but it seemed so hopeless. Now for the first time I think there might be a way,' The Giver said slowly.