^^^^
I really love that carbon wedding ring! But I would love it as a finger ring anyway.
I assume you hadn't lost your original wedding ring. If not lost, I can understand your wifey hating it - If only because it's not the original "With this ring I do thee wed" (or whatever the marriage vow is - It's been a long time). Women are generally different about such things than us blokes are - They attach far more importance to such things. We probably only buy a ring because it's expected of us, otherwise we simply wouldn't bother.
Wearing a wedding ring tends to warn off those who might make a move on the wearer, by being a clear sign that they are in a committed relationship. For that same reason, some much prefer that their partner wears a wedding ring. Personally, as someone who is now single and free to mingle, I always respect a ring on a lady's wedding finger.
That certainly doesn't look like a typical wedding ring - Another reason to enjoy its individuality. If wearing it brings you pleasure, it should bring wifey pleasure (Ooops, I may need to reword that).