Firstly, let me say that this isn't about me. I'm not directly affected by it.
A few months ago a friend of mine stopped wearing his wedding ring. It turns out we'd all noticed, but no one had commented as we're not a gossipy group. About a fortnight ago, someone passed a comment about his wife and he just gave an odd, non committal response.
Clearly, it's none of our business and we won't directly ask him.
But is there likely to be an innocuous reason for a man to remove his wedding ring, seemingly permanently, having always worn one previously?
He isn't the sort to have an affair. Always assumed he was happily married. He hasn't lost or gained weight.