I'm suppose to write a character analysis essay on Rose of Sharon. I don't recall quotes that show how she changed in the book.I remember how she...

I think that when we are looking at how Rose of Sharon
changed, the ending is where we have to start.  In feeding the man in the barn with her
own breastmilk, she has become the maternal figure from being one that was obsessed with
self.  Steinbeck ends with this vision as being something that transcends economic
condition or individual temperament and creates the understanding of universal
brotherhood and collective identity as being critical.  I think that you would probably
be well set to focus on how Rose of Sharon becomes the universal maternal figure when Ma
Joad reaches the end of her days, almost as if the torch of maternity has been handed
from one to the other.  This moment would be something that I suggest proves or
demonstrates her change throughout the book.  When Rose understands Ma's look of what
has to be done in the railroad car, it is the pinnacle moment that shows Rose's growth
and change.  Despite Connie's broken promises, and the death of her own child, she looks
down at a man, dying of hunger, and bares her breast to say, "You got to" and feeds
him.  This is a statement that Rose has transcended herself and believes in the reality
that life will continue if people allow it to.