How was one character was negatively influenced by the Southern code of behaviour in The Autobiography of Miss Jane Pittman?

I would say that Tee- Bob is an example of a character who
is negatively influenced by the Southern code of conduct.  From the most fundamental
point of view Tee- Bob cannot accept the social code whereby race dictates and
determines all aspects of one's being.  Tee- Bob represents the collision between
subjective emotions and external reality.  His love of Mary is what drives him into an
emotional abyss where he is unable to "find peace."  Tee- Bob cannot accept the
conditions that dictate he is unable to pursue the love of a woman like Mary.  The
Southern code of conduct is to blame for this predicament. It is the Southern code of
conduct in regards to race that make him fundamentally miserable.  He is negatively
influenced by it, finding that he is unable to live within it.  As a result, he commits
suicide.  His death is caused by a social order the sanctions his affections as
unacceptable.  In this, the Southern code of conduct is indicted.  It is one one in
which someone like Tee- Bob is unable to find happiness and negatively influenced as a
result.