Why is willy Loman so desparate in his life?Willy Loman was trying to earn money desparately. Nobody cared him not even his sons. Only his wife...

Additionally, Willy Loman had built up a huge fantasy
world in which he was a successful salesman and his children were successful as well. He
no longer lived in reality. As a result, he was unable to face the fact that he was just
plain Willy Loman, an aging man in an industry that prizes youth and vitality. Sales is
about whar Willy calls being "well-liked" and, while he may have been liked at one
point, he is now an aging has-been. He believed ibn empty promises, some of them real
and others imagined. He placed all of his hopes and dreams on the idea of success, of
living the American dream, and he is unable to accept the fact that most people just get
by.

As to the fact that nobody seems to care about him,
this is a direct commentary on the way corporate society has evolved. As a salesman, you
are valuable as long as you are making the company money. When you lose your "game" so
to speak, no one cares about you any more. They let you go because corporate America is
all about profit. His sons care about him, but only to the extent that they are capable
of. They are self centered, but for different reasons. Happy resents his father because
his father always criticized him and compared him to Bif in a negative light. He was the
fat, nerdy son. Even the fact that Happy was the one to go on and be closer to what
Willy would call success was never enough to make Willy acknowledge Happy. Biff resents
his father because he caught his father having an affair. Up until that point, Bif had
worshipped willie, but this one night changed his entire perspective on who his father
was. Bif still tries to stop Willy from killing himself, but only half-heartily as he
has lost respect for his father as a human being.

Willy's
wife is aware of what is really going on because she has to be. she has kept the family
afloat for their entire lives, paying the bills and making the money that has come in
meet their needs. She has borrowed when she needed to and done what she had to do.
Through it all, she has kept silent, letting Willie have his delusions and supporting
him throughout them because she loves him. She is aware of his flaws, but she also notes
that his flaws exist only because he wanted so much more for his family, and that
society should respect a man who truies as hard as he has to reach out and grab the
elusive American dream.