Not sure if I will ever have anymore kids, but the thought of my W having a child with someone else is horrible.
I think this was part of the reason you kept W from talking to D2. You are having to face some fears nobody wants. Just remember that no OM will replace D2's daddy in her life and her heart. It's understandable that you want to protect D2 and maybe even try to prevent sharing her, but if you cause W to get angry and think you are trying to keep her from her baby.....you will have he!! to pay. It won't be worth it. Let her talk to her D.
((hugs))
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!