maybe I could say something like "you do know that me & you can never move forwards together until you cut contact with her"
I would try to stick with an "I" statement.
I would try to wait for him to start a conversation that revolves around your relationship. When that happens, then maybe state “I do want a relationship with you. I need trust and part of that for me is no contact with OW.”
M46,W41 D16,D18 M22,T25 BD 11/12 W moved out 01/13 Piecing 10/13 Divorced 01/15 "Whether you worry or not has no affect on the outcome. But, moving forward, letting go, and making changes can." UrWorthy