How often do your sim marriages fail?

This is all very interesting, thanks for all of the replies. I think the reason why I’m not in the majority is because I give my sims all kinds of personalities they could have, because I like playing around with every trait, aspiration, career, etc. It’s always been like that for me, so that means sometimes I have to deal with scandalous simmies who get married and then are tempted by others- (like how Don Lothario tempts sims)- so I end up with more failed marriages. I also make a story out of my sims, and I really love how all the pieces of a sims life fits together in the end. This means I love storylines that aren’t the usual- (childhood, career, marriage, children, death) and if divorce is a part of a story, it happens in my games :D