Mine was sort of an evolution after we decided to divorce. I always took my rings off at night, so just not putting them on some days became easy.
I did sometimes decide whether or not I'd wear my rings during our divorce based on WHO I was going to be around... and whether or not I wanted to "go there" in the conversation. Ya know, some days I just didn't want to talk about it, so wearing my rings helped to keep nosey people from asking questions that I didn't want to deal with.
By far, I didn't wear them far more than I wore them... but I was ready for it to be over and was the one who wanted out, too.