I think a marriage is something to be proud of - being married is a source of pride. To me, wedding rings look like stability, determination, patience, and being selfless at times. They are a symbol that someone loves you enough to make that pledge of "for better and for worse" and that someone is willing to spend the rest of their life with you.
So it's hard to know what to do with these stubborn ideals, even after having experienced their fiery failure, and it's hard to know what to do with an old wedding ring, even after learning that the diamonds are cheap and the whole thing is only worth the price of scrap gold.
I used to be so proud of that damn thing.