The Question of Reality vs. Satire

When the witches settle into their new forms of suburban life, I assumed from their reactions to certain events that they must have changed a little themselves, along with their environment. Their initiation into witchcraft hardened their demeanor and stripped them of a certain nature of sensitivity that every woman reluctantly possesses. This is illustrated in the fact that despite the extremely close friendship between the three women, they cheat with eachother's lovers in secret, or, rather, what they think is secret, and none of them take it personally or particularly care at all. They also peacefully 'share' Darryl Van Horne by visiting him both individually and together:
"There entered into Sukie's mind, broadcast from Alexandra's, a picture of a western wooden church with a squat weather-beaten steeple...'Monty was very religious,' Sukie said...And on the same wavelength the image of Monty came to her and she knew at last for certain that he and Alexandra had had an affair. She yawned, and said, 'I think I'll go over to Darryl's and unwind. Fidel is developing some wonderful new concoction he calls a Rum Mystique.' 'Are you sure it isn't Jane's day?'"
The fact that each witch fills only one third, at most, of Van Horne's life never seems to particularly bother any of them, whereas for the typical woman, this reality would eat away under her skin if she was ever crazy enough to agree to such an arrangement.
I found The Witches of Eastwick to be a book that could be interpreted two ways: one can take everything said within its pages literally and embark on an alternative and darkly whimsical excursion into fiction or read all that is written with a healthy skepticism for fantasy and society alike. If the novel is in fact a satire, Alexandra, Jane and Sukie's entrance into the life of witchcraft could represent not an actual acquirement of magical powers, but a cynical nature, and a strong enough bond of friendship that it is capable of allowing the witches to communicate on an almost telepathic level. However, these "witches" could simply be, in truth, witches who agreed to lead their audience on the wild ride of their daily lives.