The most important relationship where habits can have a tremendous impact is in your marriage. So what are some healthy marriage habits that my wife and I have learned along the way from our roles as marriage mentors and after 16 years of marriage? The first is that love is a verb, not a noun. Love is not something you fall in and out of. It is what you do each and every day to show your caring and commitment. Some explicit ways that we practice love are by investing in the relationship. We also try to make time for communication.