You have no cards when it comes to forcing this relationship to end. Some people here do. Some don't, some are getting there and etc.
If I had told my H in January "I'm not sharing you with anyone" he would have just laughed and would have said "I'm really not your H anymore" and he may have filed if I tried to push him to end that crap, but for sure, he would have continued that relationship regardless of me and my feelings. In her mind, like my H in January, you are not married.
I agree RSF - my H is in this place now of "don't hassle me over OW - we are separated I can do what I want" and I have no power to stop it. But anything I can do to keep the final D papers away I will.
We have two choices as I see it: they continue with OP while legally still married, or they continue with OP while legally D. EIther way, they consider themselves free to pursue this - I would want to at least hold on to the legal right to M. Like Stronger, this may pass and you both will be so glad you did nothing final.
