Don't play more into her show of kindness than is there. Just b/c a wife walks away doesn't necessarily means she stops caring about all the people that were her in-laws. It could be a positive sign that she called, but don't get too hoped up over it, okay? Just keep GAL and all the other DR stuff.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!