I agree with MKAC and Anne, not everyone who does the " are you mad at me " thing, is necessarily going to be a bad person for a friendship. Maybe she was just feeling it out to see what the boundaries of your relationship are going to be. It wont always be all or nothing, sometimes people have moments and coming off a 3 day marathon hangout session to nothing may just have hit on her own issues making her question if it was a her thing or a you thing. I've done this to friends and also had friends do it to me, just not on a regular basis.