If you haven't read "The Five Love Languages" yet and are in a relationship, then I highly suggest you do. It might save it before it's too late. And just to make this slightly more startup-related as well: as team members, we also have "love languages", ways we communicate respect and appreciation to each other. Sometimes we speak different languages and don't understand each other. That breaks the team.
As an example from the article, if the author recognized from the beginning that putting the dishes into the dishwasher made his wife feel loved, he would do so, his wife would be happy, and he would feel happy, starting a virtuous cycle.