Hope- I wish i had some words that would comfort you right now, but i know that nothing will help...i'm sorry that you are hurting. I don't even know what to say, as it seems like everything has been said already. You do have to try to get back to being detached. Its interesting that as soon as you started to push him a little (by asking him to stay the other night when he went to leave), that he retreated again. You started the pursuit. Now, we may not view it as pursuit...you wanted to spend time with your H. But, he might have felt pressured. Not that you did anything wrong, but you have to remember that these WA's are in a whole different world with a different language. And anything that challenges their position, be it words or actions, is going to cause them to dig their heels in deeper, as they are trying to convince everyone, including themselves, that they have made the right decision. What i have learned throughout this whole thing is that no decision on their part is permanent...how can it be? They have no idea what they want. What i see is that your H was willing to explore his feelings for you...thats good. It means, IMHO, that he hasn't completely closed the door yet. As others have said, give him space. Do you think it is any coincidence that when you start getting mysterious (not answering calls, going out), he starts coming around. No, i think not.
I will check in with you later. Gotta to run to a meeting.