Hi Dave, I'm sorry you're going through this but I'm glad you're here. I just went through my own BD a month ago so I'm by no means an expert, but I see some similarities in our situations if you want to take a look at my thread.
My H also left saying that he needed space and a "break." The good news in that is that he isn't ready to be done, and it sounds like your W isn't ready to be done either. Whatever you do, don't give her a reason to be done! It is going to be hard, but you are going to have to give her the space that she is asking for. You will make mistakes; we all do. Just try to do the best you can.
Since you are getting along now, I recommend that you try to work out arrangements for finances and custody as soon as you can. Those discussions may be very difficult, and they might cause a huge setback later on if you don't deal with them now. We are 5 weeks in and just now talking about how to split our finances (and realizing that we have very different ideas as to how to do so fairly). If we'd had this discussion a month ago, we might be on to something else more positive now.
