Answer:
Troy and Christa are experiencing dissonance after a decision.
Explanation:
Dissonance is felt when we perceive an inconsistency between our beliefs and our attitudes/behaviors. Post-decisional dissonance, such as Troy and Christa are feeling, is a form of regret that comes after a decision has been made. We begin to worry that maybe our choice wasn't the best or most appropriate one. Post-decisional dissonance commonly happens when the unchosen options are desirable and when the decision presents great importance in our lives.