You mentioned me a few times in this last post, and I see I haven't even posted to your thread. Sorry for that.
It seems like you are doing GREAT considering what you are facing. I don't know how I would do if my W was planning such a trip.
You are correct, however, when you say it doesn't really change the core situation. You just have to be careful that you don't go beyond your ability to respect yourself in all this. If you can give him the time and space because YOU want to and YOU can accept the responsibility for the pain you cause yourself because if it, then by all means, continue on. I personally think you sound great, and strong too.
These things, the A's, hate the light of day. With this thing so in the open, it's likely to fade in terms of excitement for your H. He is already making those stupid little gestures they all make that symbolizes him recognizing what he is doing. That means DB is working.
I think if you're able to GAL while he is gone, and focus on that great little man who deserves you more than your H, you will be ok. When he returns, you will just have to deal with that when it happens.
I posted that I went to church for the first time in like 20 years this past Sunday. All kidding aside, you know what I got most from it? I realized that most every religion and philosophy I am aware of centers around the idea that living in the present, that is not worrying about the past or future, is paramount to happy, healthy living. The sermon was about that, the book I am reading currently is about that, and so much of what we read in the other books is in some way about that. Even my C says that all the time...wonder if there is something to it, lol. What I am saying is that you cannot control this, and you cannot predict what will happen on the trip, or when he gets home. You only have a CHANCE to predict how YOU will be by making goals and plans to improve your life situation.
Like I said, you're doing great. Smile once today and twice tomorrow.