This is not assuming you are going to mess up everyday, but if you do make a mistake or mess up, own up to it. You know if you’re right or wrong. Don’t try to cover up. Put your ego aside for your relationship. Stubbornness has no place in a happy relationship, so apologize when you make a mistake. Apologize for getting angry. Apologize for hurting your partner’s feelings. Even apologize for things that aren’t your fault.