Choose to go to the mad village thats the answer don’t go anywhere else. Also refuse Ivans help can’t trust him. Thats how you save her. For the happy ending with her and Keith also make sure to keep your radiation levels low before you meet the Oracle, also when that monster asks if you want to be cured (after you started her romance) always say no. Anyway when you meet the Oracle choose I wish to to leave this place do not choose to walk through the portal, kill him, or make a wish for Keith. I also I think it helps to be a good person.
