My five favorite theories
The Social exchange theory is the theory that people stick with relationships only if the benefits outweigh the costs (Thibaut & Kelley, 1959). If there is more love, consolation or even more sexual satisfaction that creates a better relationship that will in short last longer (Thibaut & Kelley, 1959). If the relationship has more fights and takes lots of work to maintain this will make the relationship unhappy and end (Thibaut & Kelley, 1959). I personally like this theory because it shows that the happier the relationship the longer it will last, while yes that is just common sense this theory proves that if you are not getting anything from the relationship it is ok to leave. I always think about woman that stay in their relationship because their significant other does SOME nice things, but if the costs outweigh the benefits, then it's completely normal to leave. The Social identity theory is a theory that people favor their own group in order t...