One thing my L told me, was to state up front, and make the mediator aware, that I was not in agreement with getting a D, and that I still had feelings for my W and M, and that I felt at a disadvantage in this situation. This was to ensure that my W did not try to take over mediation with her agenda. My L told me any mediator that was good, would note that, and try and ensure that both parties views were heard.