It is clear to me almost the first session which couples are going to get what they want out of couple therapy relatively quickly and who is going to be coming for a long time. It has to do with a willingness to be open to new ideas, a willingness to make changes and to learn new things, and a willingness to make the effort to have this happen.
Another huge piece is to stop blaming your partner and for what’s wrong in the relationship and look to yourself to see what you can do differently.
It takes a certain amount of strength in self, ego strength some people call it, to be able to do this without collapsing on the one hand or blowing up on the other. Good couple therapists know this and provide vehicles for the couple to build personal strength so that they can grow, as partners, in their communication and caring for one another.