That said, LDS folks do sometimes refer to their civil marriage as a "commitment ceremony" in order to differentiate it from the religious temple ceremony. For example, a family member of mine was recently married in an LDS temple, and they signed the marriage license there, but then held a "commitment ceremony" that evening basically just going through the motions of a standard wedding (walk down the aisle, vows, rings, etc) that all friends and family who are not LDS could attend. It's considered a way to be inclusive of non-religous or inactive loved ones. So, maybe they are still legally married but ALSO held a commitment ceremony. Just my $.02