Josh - My Spidey senses are tingling but I don't want to project my sitch onto yours. Below will be a bunch of random disorganized thoughts:
As best as you can, try to go into this conversation with an open mind. It's impossible to script out every possible scenario, so the more comfortable you are in your own skin, and how you feel, you will respond naturally.
Do more listening than talking.
If the topic is D, keep it simple, along the lines of "I understand you want to D, that is not what I want, I prefer to work on the MR, but I will not stand in your way." Then, you are free to walk out. I used this line when my W asked for trial separation, it was really good to have this one script so I did not fall apart. You also don't even need to prepare now for this scenario.
If she brings up details about the D, I would also walk. She stated she had nothing specific to talk about. This would be catching her in a lie. You don't need to be bombarded.
It might just be she senses your DB'ing and is trying to feel out what is going on with you. Here is where I will bring in my sitch. I ended up DB'ing for about 6 weeks before I got the official BD. During that time, my W assumed I was mad, angry, losing my mind (for spending my time on hobbies)... all kinds of things. My W thought I was going to BD her with a D request! You can't control it. So be prepared your W may come out of left field with some crazy stuff. Rather than get offended, or try to correct her -- listen, validate, and, most importantly, maintain a PMA. You could even say, "Yeah, I've been trying to sort things out and work on my happiness and be the best Josh I can be" -- maybe that's too corny, but my point is spin it as positive, but also as *not about her*. Just be positive and don't defend. And don't go off on a wordy tangent about how badly you want to work on the MR and save things. Keep it short and simple.
If she brings up piecing, I would make sure not to be over-eager. I also suggest you don't go very far, perhaps just suggest going to MC full stop. I fear if you ask for MC + W in IC + W respects you, that's going to completely drive her away. You can request she goes to IC later, if you end up in MC. And respect is commanded not demanded, and would come much much later. Anyhow, I would spend the least amount of time thinking about this -- if she wants to work on things, say you do too but think you need the help of MC.
Finally, one of the more likely scenarios, she just wants to talk about the lack of communication the last few days. You could say, "Yeah, honey, I also feel like there has been a distance between us. How does it make you feel? I feel kind of sad about it." This might end up a little bit of a dance, because you don't know where she stands in the MR. It's really up to you... you could say "Yeah I feel like we are having unnecessary conflict" (i.e., she is picking fights). I don't know... if she shows some sort of willingness to WORK on communication, I think that is an opportunity to reconnect. If she's just there to complain about YOU not communicating, that's different. If communication has been a huge problem, use the opportunity, but I think you are right to be wary about her intentions.
Final piece of advice: Relax. Don't go into this thinking "This is a huge moment" even though it could be. You can handle anything that comes your way, Josh. That is AMOAFWL.
