What left Bryan with nothing and made him want to die?

In Hatchet, Brian experiences many moments where he is reduced to tears. He is alone, scared, and hungry. After a brief moment of crying, Brian is usually able to focus and determine what next step he needs to take. Upon hearing the sound of a plane, Brian envisions what his rescue will look like. He sees the plane landing on the water, the pilot amazed that Brian is still alive. But when the sound of the plane starts to fade, and Brian realizes it is leaving, he experiences a new level of despair. He is convinced that they "will not return." That night, he lets his fire go out and he doesn't eat. He falls to his side, where he lays "wishing for death." However, when morning comes, Brian finds himself changed. He smiles at his mistakes and realizes, "he would not let death in again."