What is the bargain struck between Mr Shiftlet and Mrs Crater in the short story 'The Life You Save May Be Your Own' by Flannery O'Connor?

the conflict in the story The Life You Save May Be You Own Life is conflict between lucynell's mother and herself who always thinks she love her daughter very much...however in reality she was willing to marriage her daughter,lucynell with a man who in her opinion can care about her place.

beside that, other conflict we can trace from this story is conflict between Mr. Shiftlet and himself. he takes a womans daughter to marry and leaves her behind and doesn't realize what the woman has done and given him.When the old woman talks to Mr. Shiftlet it seems that she hates him but when Mr. Shiftlet talks he seems like he wants to help but could to be too helpful at times.