You can set your life goals in higher level. sometimes the things that makes married life can't goes on, possibly stick on things that they were planed together. Including comfort cause wont , so they don't want to develop themselves , which it is different from the singles because they will not cut the chance to develop yourself is always important, they are also a group of people who are completely happy in the solitary life. No different to someone who is in a relationship, it also tries to look ahead, to seek new challenges await.