Final answer:
Shania and Shane Twain would be classified as a Consensual couple based on Fitzpatrick's studies, due to their expressive communication, conflict resolution practices, and non-traditional marriage views.
Step-by-step explanation:
Based on the traits described, Shania and Shane Twain would be categorized as a Consensual couple according to Fitzpatrick's studies. This type of couple is characterized by their emotional expressiveness, willingness to confront and resolve conflicts, and high levels of self-disclosure. Consensual couples are also known to hold non-traditional views regarding marriage, aligning with the description of the Twains' relationship.