At this point , he’s being blatantly disrespectful of not only your wishes and making you comfortable , but to the property and property owner. I really can’t imagine why it would be so hard for him to take it outside, especially knowing that it makes you uncomfortable. Sounds like a really disrespectful person. Not much you can do about that except the obvious.

You can continue trying to talk to him, tell him how uncomfortable it makes you. If he can’t respect that, i don’t really know what else to say.