Alone: You lost your family/guardians suddenly to violence or disease and find yourself alone in the world (Work with your DM to detirmine the details)
Divorce: During your adolescence your parents split up and you were forced to chose which parent to live with (Work with your DM to detirmine the details)
During your early adulthood you saved someone's life. This person becomes your companion. (work with your DM to determine details) Roll 1d10 on a 9-10 your companion falls in love with you.