There is such a therapeutic exercise for improving relationships in a couple or between relatives: to say, for example, ten thanks to each other every day in the evening. Not abstract ones (that you are, that you love me), but concrete ones (for the dishes washed, the garbage taken out, the tea made, the medicine given, the scratch treated, etc.). Believe me, we have a lot to thank our loved ones for. Say thanks before going to sleep for everything that happened today. Many will struggle to think of reasons to be thankful, we often take for granted what our loved ones do. At the same time, it will train the habit of being grateful.