Don't beat yourself up about your missteps (shoulder and PA reference). Yes, they were both probably not the best things to say. But the fact that you detect them is a step forward. DB'ing is <not> natural at first. It takes time to get the hang of it.
I would try to avoid calling W if possible. Is there someone else you can call to get updates? If there was, then you could avoid calling wife, but still not look insensitive.
I do believe the seperation will not be a bad thing for all the reasons you listed. Just try to have the best week you can in her absence.
My thread, Carpe Diem #4 Orig Thread: Carpe Diem #1