He knew what he was getting.
For the past 10 days I have been rooming with a guy who I met in 2018 as a random roomie in Sri Lanka. We agreed to pair up to explore Kosovo plus this year. He knew that I do not wear clothes while in the room and I snore ( he is snoring as I type this). No complaints about the nudity, but he has grumbled about my snoring . He also outed me to the group about my nude habits in a good natured way. They shrugged that news off.
It's been some time you've shared that room. He knows how you live...and he knows you know how he lives. Nude is not the issue...snoring is. If thats too much for him to put up with, even though he snores, then ear plugs....it's simple. Plus, I see what he was doing attempting to out you as a nudists. He wanted them to side with him...which backfired. You do you brother. Maybe he will join you someday... Happy exploring and enjoy life!!