I have seen women do this, too. They have made up their mind (or so they think) that it's over and they are ready to D. Then they meet with the H and he is looking really good, and he is showing that side of himself that resembles the man she had fallen in love with and M. So, they have a peaceful discussion……..and as soon as her angry feelings subside, her old feelings of attraction try to surface. Bottom line......she felt attracted to you. That's why she kissed you. Did not surprise me one little bit. That's not to say she's ready to reconcile, but it probably left her feeling a little confused also.
Continue playing it smart and do nothing that hints of pursuit. That is a sure way of throwing ice on everything. The WW needs to work to get her H back. Know what I mean? You can keep the road paved smoothly, but don't go chasing her down.
Good Job!
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!