Lousy final
I'm sorry but James Dean acting was awful in the scene where Cal apologizes his father on bed. It that part the music tries to cause the effect that the acting doesn't.
This movie is good up until the scene on the train where Adam leaves. Abra should have been punished for leaving Adam. Same as Cal for punching his brother.
The father forgave Cal too soon taking into account that he was the responsible of the leaving of Adam and the stroke he suffered.