I've been reading up on your sitch. Take 25yrs advice...let it go about the ring. My husband took his off a week after he proclaimed our separation(although not legally). It ticked me off, it hurt my feelings but I haven't said one word about about it since an I don't ponder his stupidity. I don't have the energy to waste and neither do you.
I'm learning that men having a mlc are crazy. Don't waste your time trying to figure him out. I'm three weeks into this mess and I'm learning to just focus on today and try my best. Some days I'm a strong success and others I fail miserably. It's a process and it's all about patience, which is hard for me because I like to fix things quick.LOL