If you keep ending up with a version of the same difficult partner, it can feel like bad luck, or like something is broken in you. Neither is quite right. There is real research on why relationship patterns repeat — but the popular story about it online is more oversimplified than most people realize.
Attachment theory, developed by John Bowlby and Mary Ainsworth, is the most researched framework for understanding how early bonds shape adult relationship patterns. Separately, the older, more folk-psychological idea of "repetition compulsion" also circulates widely. Both are worth understanding honestly — including where the evidence is solid, and where it is thinner than the popular version suggests.










