Jon,

I would suggest that you try wearing your wedding ring for a while. If W asks about it, just say "I'll take it off when we sign off the D papers."

Your W gave you two key clues in regard her internal thought process as it relates to the song and "you'll lose it again" comment which leads me to think that she's testing your resolve for her and the M. Which is why I'm suggesting that you put on your ring.

Then watch and monitor W's reactions.