I consider selfishness to be the cancer of any relationship. As soon as the question “What’s in it for me?” becomes the focus, the relationship may be on a downward spiral. Focusing on what you are not receiving, how imperfect your partner is, what deficiencies they possess, etc. will only set you up for failure. Relationships work because two people care more about each other than they do about themselves. As a result needs are mutually met and love is fostered by serving and helping each other. If you find yourself developing selfish tendencies and thoughts, it may be a good time to evaluate how much you are positively contributing to the relationship. If you want the relationship or marriage to last, be your best selves to each other. That will help you forget about “me”.