I had a convo with a friend, and she said her OH would never fart in front of her and vice versa.. They've been married a fair few years.
I don't make a habit of lifting cheeks and being obvious but if I need to do it I do. The tummy ache can be a killer 
I'll also wee if he's in the bath (on the toilet obviously).
Is it me or is it just unrealistic to think you would never be able to not do it at some point when living with someone long term?