Question

In Sons and Lovers by D. H. Lawrence, Gertrude Coppard marries Walter Morel, after falling in love with his mannerisms and personality. Which of these developments might be used to dwell on the theme of illusion and reality?

Gertrude divorces her husband and goes back to her parents' house.
Walter Morel is a member of the gentry but rebelliously works as a miner.
Gertrude finds out that her husband is extremely poor and a drinker.
Walter Morel loves Gertrude very much and they live happily ever after.