In A Raisin in the Sun, what made Walter suddenly change his mind about taking Mr. Lindner's money?

It is particularly
interesting to examine the stage directions of this section of the play, as it reveals crucial
information regarding the conflict thatis experiencing and how he makes his decision. If we look
at the way he is described as acting towards the beginning of the conversation with Lindner, we
see that he is walking "slowly and awkwardly, rather like a small boy, passing the back of
his sleeve across his mouth from time to time." Having just lost the remainder of the
inheritance thanks to his own foolishness and naivety, and planning to accept the money
from...