Being obsessed with people who don't want you often stems from growing up in an environment where you felt you had to constantly prove yourself to your parents or caregivers, or weren't shown enough love by them. This pattern usually begins in childhood, where love and affection felt conditional or scarce, leading to the belief that you must "earn" love. As a result, you might be drawn to emotionally unavailable people in adulthood, subconsciously repeating these dynamics from your past.