If I were you, I'd sit him down and just explain, straight, that you adore him but are just not ready to move in. Its a huge decision and its great that you're not taking it lightly. So many people move in too quick and regret it.. Perhaps you could arrange some romantic dates together, have some fun and get a bit of the magic back instead of the unsure times at the moment for both of you. I think that would make both of you more secure and happy?

I do think tho, that you need to stop venting at him over your probs, dogs, laundry etc, or telling him things like you'd only move in with him because you're afraid of losing him. Thats probably going to hurt as he will just want to hear that you'd want to move in because you're mad for him.. Its probably just better to keep quiet on that one!!
Laundry I agree is easy to sort, find somewhere else, or move appartments, finding a home for one of the dogs if its too much. We're in control of our lives and things like this we can sort if put our mind to it.

Wish you all the best, and I hope you dont give up so quickly. He does sound a wonderful man.