Answer: cognitive dissonance
Step-by-step explanation:
From the information that was given in the question, the behavior exhibited by Melissa and Mick was a result of cognitive dissonance.
Cognitive dissonance is a behavioral decision that has to do with having a belief that's inconsistent. This typically occurs when there's a difference between the behavior of such person and what they believe in or when there's a contradiction between the beliefs that they hold.