Do as one of our professors did: print her a nicely formatted sign that says 'How will this help me graduate?'
Because grad students often lose the focus that the goal is for them to get out of the program, not stay there forever. Whenever she complains, point at the sign.
She needs to realize on her own whether refusing to talk to her advisor is really going to help her graduate.
But isn't that what Amy's asking for? She wishes her adviser would help her with a defined focus and a timeline toward her finishing the program. He's the one who keeps asking her to try out different methods.
Your route to graduation is not just a timeline...it's whether you play computer games or work, and whether you get into fruitless power struggles with your advisor. Part of your advisor's job is to counsel you to use different, and more productive, research techniques, whether you want them or not. My chair counseled me to change the entire topic of my dissertation, because it would sheer a couple of years off my program. My choice, but I appreciated him pointing out that if my goal really were to get out and on with my life, I could do the project I wanted to do later, when I had good funding and the time to do it.
While many will tell you your dissertation is not supposed to be your masterpiece, it IS, in the original sense of 'masterpiece'. Originally, a master piece was the work a journeyman craftsman did to prove that he had mastered the skills of the trade and was prepared not only for independent work but to take on apprentices himself. Part of the dissertation then is showing that you know how to design and carry out research, that you can choose wisely between various research methods, that you can ably use use consultation from colleagues. If Amy really believes that her advisor does not have her best interests at heart- and I agree there are some advisors who are control freaks who needlessly jerk their students around-- she needs to ask herself which route will get her to graduation best, knuckling under and working with this advisor, or making a change to someone else. Avoiding your advisor and just not taking his advice is not a plan I've seen work well for students. Her advisor is probably getting frustrated with her not taking his advice. After all, he may be 100% right that her methods aren't going to successfully complete the research as planned. One of the most important parts of completing a dissertation is having a chair and a methodologist you trust. I credit mine with all the sanity I managed to graduate with.
Once, my chair told me that he would step down as chair if I pigheadedly went ahead with a plan I was proposing. I immediately backed down, because I knew that if he felt that strongly about it, it was a very, very bad plan. I was later able to confirm that he was absolutely right.