This is one of six Purdue Extension fact sheets about couple relationships that list strategies and activities for enhancing a relationship. Some couples are good at expressing their concerns to their partner, but sometimes those concerns come across as criticism. It can be difficult to communicate with each other when there is too much criticism in a relationship. Complaints can also be unpleasant. However, carefully expressed complaints can help partners understand each other better in the long run. This fact sheet will help you know when you are complaining and when you are criticizing.