I know what you're feeling - that's why I wondered if I was delusional.
My H behaved similarly. He kept fixing up his apt to the point it started to look like he was searching for more things to fix and change rather than really leave. I think you're H may be stalling and second-guessing himself - a good thing. My H even slipped one time and said 'things are so much better now, I'm not sure I should leave'. But then he went out and bought a sofabed for the apt (which has been empty going on 8 mos now).
Don't worry about fooling yourself right now - you have to live in the moment. Just keep making it easy for your H to stay. Maybe you can even come up with more things he needs to fix - it sounds as if these are the type of things that make him feel good, being needed? Taking care of the 'manly' things? Acts of Service?
Keep it going - the good will between you will feed on itself.
