I could give you lots of reasons.
It doesn't fit very well anymore.
Adam rarely wore his.
It's not really the embodiment of the vision I took to the jeweler who made it.
If I'm being honest, though, the real reason is that I just don't feel married. Sitting at dinner with friends the other night, I looked at my own hand and thought, Why are you still wearing that?!?
I've never believed in the family-reunion-up-in-the-clouds vision of the afterlife that is so prevalent in American culture, so I don't believe that Adam is 'looking down on us' or that his soul continues to have agency in my life. It is through our stories and our memories that the dead are present in the lives of the living, but that is our agency, not theirs.
So, I'll just put this over here.
I don't particularly feel single either. This is that wilderness between end and beginning.