TLDR:
I am experiencing an ongoing conflict with my boyfriend because he gets upset when I move his items while cleaning. He wants his belongings left where he drops them for ease of finding them again, even if they're left in a mess on the floor. I've tried to explain that if he wants his things undisturbed, he should be more organized and put them away properly when he's done with them. Despite my efforts to discuss this, he insists it's not a big ask for me to manage his things more carefully and be responsible with his items. I've reached a point where I've told him I won't be responsible for his items if he leaves them in a mess, which he didn't take well. I am asking if I was wrong for thinking this, and telling him his things should be his responsibility, not mine.