You don't need to pretend it's a mutual decision. You don't need to pretned anything. I don't know that all truths need to be spoken. I can tell you from personal experience how easy it is to set yourself up as being right and the impact this has on kids (been on both sides of this one). Life isn't (for the most part) IMO black and white, it's just too many variations of gray.
You'll do what's best for you kids. It's more than clear how much you love them.
