Interestingly, mathematics can be applied in marriage concept.As the number of divorce has been increasing lately, the research into this is required. this phenomena is not only in developed country but also in developing countries.
In developing countries like Indonesia, the number of divorce also increases. One of the causes is the lack of communication. Mathematician and psychologist have developed mathematical model to explain this phenomena. Gotman, a psychologist, has developed mathematics model which explain this problem.
All the observations have been quantified and turned into a kind of Dow Jones Industrial average for marital conversations. Gottman has found that marriages fall into the danger zone for divorce when the ratio of positive to negative interactions falls below five to one. Just by watching a videotape of a couple in the first few moments of a conversation about an area of marital contention, Gottman can predict with 94 percent accuracy which couples will later divorce (http://www.psychologytoday.com/articles/200403/marriage-math)
this is interesting, we can scrutinize this and can make the model more perfect.