Boyfriend took pictures

My boyfriend had a very toxic relationship with his ex. This morning he was irritated with me and I asked him what was wrong and he had showed me pictures of our bathroom cabinets. He had taken a picture of a hair that was in the door and how the door was propped open because of my shoes. I looked at him very confused and he told me don’t play stupid. I told him I didn’t understand and he said then I guess we don’t have a problem and that he didn’t want to be monitored. You guys what the fuck was he thinking?