No, he wouldn't expect to come and go as he pleases. His only legal stance for doing it today is this is his house.
But he would come round when I am not here nonetheless, to pick up or drop off stuff for the kids, to walk our dog (basically some of the same excuses he uses today). He'd just say, "Oh, I borrowed D13's keys as she forgot her football kit and she needed it for a game today and you were at work". It would all sound very reasonable, very int the interest of the children. And it the reasoning would probably be valid and not orchestrated. He would however, take advantage of it.
One day after he MO I was cleaning through some drawers in the office and found our marriage certificate and a video (yes, we were married that long ago that people still used videos) in one of the drawers. I put them in a plastic bag, the kind they give you in the supermarket, and tucked it away at the bottom of my wardrobe. It is a walk in wardrobe and also where I kept my wash bin). The plastic bag was shoved behind the wash bin among other plastic bags containing left over paper, odd socks I hadn't gotten around to throwing out, and the like. One day I was sorting through the plastic bags and the one containing the wedding certificate was gone. I asked him about it and he said "Oh yeah, I found it when I was looking for D13's football kit and put it in the cupboard with the photo albums". So, valid(ish) reason for being in my wardrobe. Invalid reason for nosing around the plastic bags behind the wash bin. I in no way think he was looking for the marriage certificate. He saw some plastic bags and he wanted to find out what was in them.
That will be what it's like when I am living in my own place. He will find some reason to come around when I am not here. He will find a reason to look in drawers (I was looking for the scissors because I needed to cut a tag off this shirt I bought for D10). Whilst he is in the drawers he will read every official looking document he finds. It's not malicious. It's just nosy. He won't tell me what he did.
