That's the funniest thing about H's. We know them so well, and they don't even know we know so much. I can tell if my H is lying to me. He can't help it, it shows on his face. So, funny, because as a police officer, he took a course in reading a suspects body language. I learned a lot from that course HE took! I think it's great that you are on such detached, friendly terms with him. It would make it easier if he ever decides to finish going through his adolescence, growing up and finally "getting" it. He doesn't seem like a bad person at all.
Where do you think he will end up moving to after his 60 notice is up? I hope he won't intrude on your space. He doesn't seem to get it that you need this time, and he needs to let you have it. Of course, we'll see what happens when ow has to find elsewhere to live.