How are the roles of Kino and Juana changing in this chapter?

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chapter 6

In contrast to the savage and brutal Kino, Juana becomes stronger through the suffering she faces. She reveals herself to be dedicated to her husband even at the most dire moments, demanding that he not break up their family despite the practical advantages. Furthermore, it is Juana who remains awake at night, guarding Kino and Coyotito as Kino sleeps. Steinbeck juxtaposes Kino with Juana; while the man becomes more instinctual and animalistic, the woman retains her particularly human qualities. While Kino becomes suspicious and paranoid, when he looks "for weakness in her face, for fear or irresolution . . . there is none."