I really think I have it now. I'm not sure what the dilemma is, its either the lifestyle or the fact that she told Paul that the father had no luck so he tried to help out ending in tragedy.
This is a story of a middle class English family that find themselves in a situation that is far above what they can afford. They have a large home, gardener, expensive furniture, and the best clothes. Athough they seem to have the life of luxury this is not enough to satisfy them. The mother and father had little income. I find it very entertaining that D.H. Lawrence uses an inanimate object to symbolize a supernatural existence for example: there is a point in the story where the boy sits and rocks on his toy horse lifelessly saying "There must be more money." The oldest child, Paul, bears witness to the misfortunes of not having enough money to support the high end lifestyle that they are trying to keep up. But becomes determined to help his mother out of the dilemma that she ultimately finds herself in, by being 'lucky.' During an afternoon walk with her, she has made an unknown, fatal decision to set in motion, a disturbing series of events that will culminate in tragedy, by the mere mention to Paul that his father is not having good luck at betting on horses. Determined to win the love and affection that is absent from the demeanor of his mother, the wheels begin to turn like gears grinding with outbursts and spurts before achieving their end result of winning at the horse track. I was never a huge fan of D.H. Lawrence but after I read this interesting tale I immediately fell in love with his writing style and the different themes he decides to incorporate into his work. I give this book an 8 out of 10 stars. You won't be disappointed.
Good revisions -- and you added details! Terrific!!
Be sure to add a subject between "But" and "becomes" (about halfway through).
There are a few punctuation errors that need fixing.
~~ put a semicolon after "existence" and before "for example" and a comma after "for example" not a colon
~~ put a comma after "saying'
~~ put a comma after the second instance of "D. H. Lawrence"
Nice job!