Answer: Rumination
Explanation:
Rumination is the process in which a person tends to think about deep thoughts and beliefs on certain topic.The person tends to repeat certain incident and situation in mind to find insight, purpose or cause of it.Focus of mind gets cling to distressful situation which might cause tension or depression .
According to the question, Gloria is involved in rumination in which she is thinking repeatedly about the beak up and fight she had with her boyfriend.She is trying to find insight of it leading her to depression.