I'm sorry to hear about your situation. I was very afraid of not seeing my h or letting time pass but I am slowly coming to realise that time is not my enemy even though everyone else, apart from on this board, seems to be telling me it is. I have to say that I am already seeing some small results from DBing and I have only been doing it less than a month. Certainly more positive results than I was seeing when trying to handle it on my own - crowding, persuading, clinging were my specialities. This will take time and isn't going to resolve quickly necessarily, it may do but if you read the stories here generally these things do take time.
I believe that feelings change and aren't 'set' as our S would have us believe and, while things might not turn out the way we hoped, you are well within your rights to fight for your marriage if that is what you want.
It sounds like you are doing really well in terms of GALing. Keep it up, it will make the process easier for you and more importantly help you and give you strength.