When I wore a ring, I would leave it on, as it did not seem right taking it off.
However, like rdodger, we had a fight 9 months ago and I took mine off (said I lost it). I can get away with this a little easier than some as my best friend has never wore one (job).
It is ironic that some guys will take a ring off when married, while some gals will put one on when not married.