LS - that made me smile. thinking about you finding pennies and stringing them together, that's sweet!
I think it's great that your W wants to talk. I'm sure you have so much to say to her and want to hear so much back. Perhaps you should just listen to what she has to say and not say too much back. Be affirming, be supportive of what she has to say, but don't reveal how you feel about what she is saying. If she asks what you think about what she is saying tell her you need to think about it for awhile. No matter what it is. Just slow the process way down. If you establish in your mind, prior to speaking to her, that you aren't going to respond until 'later' (whether that be a few hours later or a day or 2 later) you may be able to do it.
As difficult as it was for you to let your W go on this trip, I think it was wise. You allowed her to get a look at the OM in a way that she was maybe unprepared for.
Expect nothing and you won't be disappointed!
EM
Me: 34 H: 39 M: 7 yrs H A 12/05-8/07
If what you say surprises me, I must have been assuming something else was true. - M. Wheatley