I think the most important thing is to know, right now, you don't have to make any choices. You can continue to live life one day at a time. I think in order to move down the path towards D, you need to be absolutely certain, and know that you've felt that you can no longer stand for a substantial amount of time.
The walking on eggshells, and feel like you can't lean on him? That doesn't sound good.
Have you thought about moving to the piecing forum? I wonder if some of the folks over there might be able to help more given they're further along in their journeys than most of us here on Newcomers. From what I've heard, it seems fairly common for the LBS to become a potential WAS around the time of piecing.
It must be so frustrating and exhausting to feel like you are still walking on eggshells around him all the time.
You have been heading for awhile towards feeling exasperated, I know when we all told you to GAL and get away for the weekend. Now I'm going to ask again - any chance you can go away for the weekend, or even a bit longer, make a long weekend of it? Can you go visit friends or family? Just to clear your head a little.
Are you seeing an IC? What do they say? (If not, can you? Would be helpful)
Me 28 / H 28 M 1 / T 2.5 BOMB 12-3-14 "I don't feel like myself any more" Still living together, separate rooms.