The WW operates from her emotions. If she's having a great day and getting her emotional needs filled (especially her ego food)then she's going to act excited, bubbly, nice, etc. However, if things are not going like she expected, then her mood probably won't be too pleasant. It doesn't mean it's about you. Remember, all her focus is on herself and what she wants in the moment.
You are doing great. Keep it up.
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!
