Your sitch is different than mine, but my recent experience was that, yes do confront her but,

1) Change of venue, don’t have ‘the talk’ at home, in bed, at night, do it sometime where you are away from these distractions and also in such a way that she doesn’t feel cornered. Don’t let her off the hook but don’t start out in opposite corners.

2) Be nice about it, should scare the heck out of her, really, I keep a happy face and just let the resentment boil over, by having the serious discussion but keep it cordial seemed to do wonders for me. Again, in my sitch we both didn’t want it to be adversarial.

3) Say what? I would ask her what she really means; confusion doesn’t help either of you. Hey, if I am getting blow off, be clear and let me know where I stand.

4) A plan, the one thing I wasn’t going to back down from is some kind of a plan or agreement on what we were going to do differently, same as before didn’t work right? So what is different now?

Just my thoughts.