I took mine off because I view our wedding rings as a symbol of our love and COMMITMENT to each other. So long as she was actively carrying on an affair, lying to me about it, refusing to end contact, and then taking HERS off, there was no "commitment" at that point, and so I took mine off, too.
Once she ended it with him, and began reconciliation, I immediately put mine back on.
Have you talked to her about it, and told her how much it upset you? I told my wife that out of everything she did (and some of it was pretty tawdry), this hurt me more than anything.
