Selfishness in a Relationship: "I Am Me"

Are you being selfish towards your partner??? If you feel like you do not have to change yourself in a relationship, is that being selfish? What is too much control in a relationship? "Is my money your money" and Is your money My money?" Should you have to compromise your likes for your partner's likes in a relationship such as cooking certain foods, having or not having kids, etc? Is spending too much time with your friends instead of partner selfish?? Let your voice be Heard!!!!!