I wouldnt question it yet... you dont have anything to back you up that its an inappropriate relationship, so you have to wait... you will just seem nosey and controlling if you question it now. TRUST ME! lol Just keep an eye on it but do not say anything...
I like where you said a few post back: Poor thing, she doesn't even realize that this has never been her. This is something she's talked herself into thinking she needs to be.... I feel you on this one, I feel the same way about H and the person he feels he needs to be now to find his "happiness".
Read DR again before you go home, and as difficult as things will get when you get home, remember it! I was the worst DBer ever! And it certainly did nothing for me but help my H feel more and more reassured that he was making the right decision to divorce.
Take comfort in knowing that the anxiety you will feel when you get home is much different than the anxiety over the unknown right now, but it wont be a better kind of anxiety necessarily. Stay strong... stay smart... stay focused... wait, whats the Air Force thing: Fit, Focused, and Fighting for what's right... Do that! lol
Me: 25 H:25 M: 2yrs T: 4yrs No Kids Bomb: 11 Feb 10 Newcomers Story