Responses
My theory is he probably promised something (which probably freedom and love) to mc and broke it cuz yk he got kidnapped and tortured and stuff. And MC probably hate him for breaking that promise and hate(lovehate) him for not telling mc anything about some conflict and lastly mc hate himself because he unable to do anything (thus the deep anguish and despair).

wait why does everyone hate the og soul again?! Ig I’ve forgotten the lore cause all I remember is him being tortured :(((