Do you ever wonder why you tend to react or behave in certain ways with your partner? It could be because of your attachment style. Attachment theory was created by psychoanalyst John Bowlby in the late 1950s, and developmental psychologist Mary Ainsworth further developed the theory in the following years after doing her own research studies. Attachment is described as the emotional bond formed between a child and their primary caregiver (usually the mother) in response to t