Did, we are here for support D or R. None of us believe that someone should stay with someone that doesn' want to be with them! And while R is usually the ultimate goal, the real goal is that the LBS moves forward, D and R, healthier and happier!
If I were you, if this feeling of the MR really being over is real, I would talk to a lawyer, get D papers drawn up, and be ready to move forward with filing. I think once you tell her that support is over until there is a court order in place for support you will see her true colors come out. I think cutting that voluntary support off is a must do step in order to get to the next level.
Think about it from her standpoint. Her bills are paid, she is getting over $2100 to live separate. She has no reason to upset that apple cart. Once you take the apple cart away, her true intentions will be revealed.
Good luck man, I know it is never easy, if if it is the right thing to do.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018