I have a newish boyfriend. I've known him for 1.5yrs but we've been together 3 months. He's really lovely in so many ways & we really click, but one thing bothers me and I can't quite get used to it. He expects to be able to pee with the bathroom door open. It feels weird this needing to keep a sight-line to me. To explain better, our bathroom leads off the open-plan lounge kitchen and the bathroom door is directly in line with the sofa. I just find it ewww. What's the big deal about closing the door ffs? But when I challenged him he said 'Are you shaming me?' 
so I shut up about it. Thankfully, he hasn't taken a shit yet in full view. I've heard of people who're so open about everything that it doesn't matter but I don't like it. Something about it just spoils the magic for me. Aibu?