Answer:
Social comparison theory
Explanation:
In psychology, Social comparison theory is the theory that states that individuals determine their own social and personal worth based on how they stack up against others who they perceive better or worse.
People compare themselves to others for self-improvement, self-motivation but these conducts also can lead to overly competitive attitudes, feelings of superiority and a constant need of approval.
In this example Marika was confronted by the jealous girlfriend of Marika's ex, she avoided confrontation and left. However, she later asked several people what they would have done.
By doing so, she was looking for approval and to compare herself with other people. Thus, this is an example of Social comparison theory.