Miracels happen, This sounds a whole lot like the first time my H first returned home to me. He was loving and would look at me in the eyes, but he had no remorse at first. He even seemed to still be rebelling in many ways -despite coming home.He often seemed to be thinking quietly in his head and reflecting alot. I walked on egg shells the whole time he was back from aug '07 - dec '07. then all of a sudden out the blue - he left me for the second time with all the same MLC spew I heard the first time. While he was gone the 2nd time for another 5 months he again saw his little stripper friend he was infatuated with many times. So can only believe that even though he was home with me from aug-dec '07 his heart and head were still not clear. He was in the midst of making the decision he needed to make about us and our life and it was just too hard to do when he was around me. He needed to leave again that second time.
He teetered and tootered on this idea for a long time and until he was clearly ready to come home FOR GOOD he was kind of in a fog and queit and not completely remorseful.
Now two years later, I can say that I have seen a lot more remorse on his final return. NOW we are peicing, before he was still flip - flopping. And it sounds to me your H may be in the same predicament.