[MissMisa]

To be honest, that is just plain rude. I can totally sympathise with you spending so much time helping someone out, for them to throw it back in your face. It's really not worth spending anymore time dwelling on. Traveling can be scary especially for somewhere like Japan which is very culturally different, but that's no excuse for her to behave in the way she did. If you get an apology, I do think you should accept it, but if you don't then maybe it'd be best to part ways.