This resonates very closely with me, friend. My SO does the same thing, absolutely refuses to break wind in my presence during the entire waking day. However, the moment she falls asleep a raucous fog descends upon the bedroom. I’ve tried to gently encourage her not to withhold her bodily needs, and guessed that after we got married she would “cut loose” a little bit. No dice, we’ve been married now for five years. I’ve gotten better at recognizing the signs: our cats vacate the room (the animals always seem to know first) and I get a bit of an aura. I then strap myself in and start softly humming “Amazing Grace” and focus on how much I love this woman while the room around me rattles and shakes and the curtains fly up like something out of Paranormal Activity.