She is definitely on a roller coaster. You need to detach from her emotions as much as you can or you will be on the same roller coaster.
You should focus on yourself. Any snooping you do will just end up driving you crazy. I know from experience. Don't focus on what she's doing or not doing at this point.
In terms of GAL'ing, is there anything you've always wanted to do, but have never taken up or tried? I think the walking is a good start, but maybe there something else you can do? I think the first step in GAL'ing is thinking up things to do to GAL. Once you start figuring out things to do, it gains momentum.
