Usually once. If the sims from my main families get married they have usually found the love of their life. Honestly I'm a bit surprised that I remember only one divorce and two engagments broken off. The divorce happened with Makoa and Lilliana Kealoha, so that Makoa could marry my sim Layla Trout who was engaged to Don Lothario's son Charles. It was a bit messy and sad.
edit// Oh now I remember more. Octavia Moon and Thorne Bailey broke off because Octavia fell in love with Sofia Bjergsen. And Johnny Zest and Luna Villareal got married and then later divorced, because Johnny had an affair with Sofia Bjergsen's aunt.
