Endless tinkering on this to try to pitch Christine just right (and because I'm terrified of the fans' howling "But it wasn't like that!")
The choice has got to be absolutely balanced, so that she can swing one way and then another without either seeming implausible -- this is a very different Christine from the wife of the "Choices of Raoul" who was ready to fight for her marriage like a tiger. In the revised version we have a relationship that hasn't so much gone spectacularly wrong as ebbed away into tired habit: and this time it isn't Raoul who is offering a way out...
So ages of fiddling away at it, to boost first one man and then the other into an option that from her point of view she might actually want to choose, without overthrowing the balance too far on either side. Plus the usual edits for inadvertent repetition (how many times can one use the word 'possession' in one chapter?)