It's definitely a rollercoaster. It may be her way of testing you, seeing whether you're going to be consistent. It may help to figure how out how you will respond if she does relapse. I find it easier to plan while things are good how I will respond rather than react to any hurt I feel in the moment.
Has AS already told you the nut and squirrel analogy? If your goal is to have a squirrel take a nut from your hand, you have to be pretty patient while the squirrel decides whether it is safe to approach. I now have a picture of a nut on my desk to remind me of this
H: 38 xW: 38 M: 16 T: 18 S: 9 BD: 2/2012 W moved out 4/2012 D: 11/2012