Have you considered that she may be considering Ireland a make or break trip? It may be a test for her of some sort with respect to whether she can see the two of you as H-W.
I'd suggest you do something like plan a picnic on a hike, rub her back, roll her over and kiss her very well. At the very least, be alert and responsive to any signs. Not sure if you responded to her changing bedtime attire or not, but that is certainly not the kind of thing you want to ignore. Just like men, women want to feel desired.
