Did Charles engineer and manipulate the whole plot of Blithe Spirit to get rid of Ruth?

It is possible to regard the entire premise of Blithe Spirit as an elaborate hoax that Charles created because he was dissatisfied with his second wife, Ruth. Noël Coward does not provide any indications that this was his intention. Appreciating a work of fiction, especially when it includes fantastic or improbable elements, has often been said to depend on “the willing suspension of disbelief.” That sort of suspension is necessary to enjoy the humor in Coward’s play.
As the play progresses, the spirits of not just one but two dead wives make Charles’s life miserable, and he realizes that his house is saturated with uncontrollable psychic energy. Such developments indicate that Charles has not played a hand in engineering this situation and has become a believer in the paranormal dimensions and Madame Arcati’s gifts, at which he had scoffed.