Buster, that's an intensely personal decision, and no one on here can answer it for you. Do you still consider yourself married? Are you still committed to trying with her, if she'll turn away from what she's doing and work on the marriage with you? If so, then you should probably keep wearing it.
I personally wore mine long after my wife took hers off, and only took mine off once I filed for divorce. We both put them back on when she ended her affair, and we put the divorce action on a 3-month "stay," and they've stayed on ever since.
I will also say that lawyers like you to continue to wear them, and mine made a note of when my wife took hers off.
