The Age of Innocence
The book illustrates well the struggles to come to terms with life in a claustrophobic society. Archer often considers starting a new life with Ellen, but in the end cannot bring himself to go through with it.
Wharton does have a disconcerting tendency to skip a few months, and it is during these months that the reader might expect a significant part of the plot to occur - but it doesn't. You might think that you would be screaming at Archer to make up his mind, but I didn't find that - part of Wharton's skill is in creating a scenario where his behaviour seems rational. In the end one sees that it isn't a sign of indecisiveness, rather it represents the only way that he can be true to himself.
You can read The Age of Innocence at http://www.gutenberg.org/etext/541