Well, I watched it finally last night and, laying aside the bee story which I simply don't have the scientific knowledge to comment on with any sort of certainty, the only other thing I found troubling was the money issue.
The whole business about a little doubt when she met the old girlfriend and such...I don't think momentary doubt is a foreign thing to us. In fact, most of the piece I really related to. Having a wife who wants to stay together...who still "hear's the voice" of the man she married...but who can't handle "being a lesbian" and etc - all that sounds real familiar (and thus authentic) to me
But the money thing troubles me a lot. I don't see how I could manage to spend 70K and NOT at a minimum let my wife know what I was doing. MAYBE I'd be "selfish" enough to insist I HAD to do it but I wouldn't do it by deception.