Complex sentence: Ironically, Jake Spoon decides not to go at all, having made himself comfortable with the town's only prostitute, Lorena Wood, who is smitten with him after he promises to take her to San Francisco.
Split into simpler sentences: Ironically, Jake Spoon decides not to go at all. Instead, he promises the town's only prostitute, Lorena Wood, known as Lorie, he'll take her to San Francisco.