I mean the closest I've ever seen to that is people who are against marriage in general. I know a few couples the members of whom have been screwed over by spouses in the past or have experienced other shitty situations like that and are, as a result, against official marriage of any form. The thing is, these people, for the most part, only care about their own lives and, aside from some cynicism expressed at other peoples' happiness, have no reason to care.