Final answer:
The belief of being crushed by a loved one's rejection is considered irrational and can be treated using rational-emotive therapy (REBT). REBT aids in identifying and modifying irrational beliefs, and encourages metacognition to improve emotional management and life quality.
Step-by-step explanation:
A psychologist would likely consider the belief that one will be crushed by a loved one's rejection as an irrational belief, and rational-emotive therapy (REBT) would indeed be a method to treat such a thought. REBT is an active-directive, philosophically and empirically based psychotherapy which focuses on resolving emotional and behavioral problems and disturbances and enabling people to lead happier and more fulfilling lives. REBT is grounded in the idea that people generally want to achieve goals of survival, happiness, and personal fulfillment. Nonetheless, they often act in ways that are irrational and self-defeating. The therapy helps to identify these irrational beliefs and replace them with more rational ones, acknowledging the role of these beliefs in creating self-imposed limitations.
The belief that being rejected would be crushing could be rooted in what REBT describes as a catastrophic thinking pattern, one that can contribute to emotional distress. Through REBT, the individual is taught to challenge and modify these irrational beliefs, engage in metacognition to reflect on the source of these emotions, and manage them to improve their quality of life. Thus, it's false that this wouldn't be treated with REBT; rather, REBT is a suitable therapy for such a belief.