You can ' t . It ' s a process within her and no amount of reassurance , no boyfriend , no love , sex , affection , praise can fix it . It would be like trying to fix a friend ' s disorder by proxy . It is not a mood disorder , you can ' t lift her mood or make her see a reality when she processes the world differently . If she ' s suicidal she belongs in the hospital . It doesn ' t matter if she likes it , it ' s not about what she likes . She needs professional help , badly . You also would be upset with yourself if you took that burden upon yourself and they seriously hurt themselves or worse . You ' re not qualified to handle it . She needs very serious , intense long term therapy . I don ' t know what to say to that . I don ' t have the right words . You may have them , you risk her upset no matter what , but it is the only thing that can help her . You shoukd tell her you ' re not qualified to handle these issues . And , you may be completely powerless it is her choice even if the choice is self destructive . It ' s not your fault .