Learn how your relationships and love life can be affected by the attachment style you developed while growing up. Attachment styles were studied back in the 1960s and continue to be studied today.
What we have learned is that how you were raised and interacted with other people growing up can affect your love life and relationships. You can also change your attachment style if you work hard enough.
Bowlby John (1944). “Forty-four juvenile thieves: Their characters and home life”. International Journal of Psychoanalysis. 25 (19–52): 107–27.