I appreciate the thought you are putting into this matter of establishing a good relationship with your wife to-be. There is no single formula of what works in relationships. It is dependent on the personality of both individuals. It is often useful to begin with sharing little things and assessing the reaction the other person has to your comments. Open communication and honesty is at the base of a good relationship. However all of this is a process. You do not have to share everything in one go but take one step at a time and make sure that you are addressing issues when both of you are ready to talk about it. Also encourage her to talk about her thoughts and feelings as the communication must be both ways. And remember to continue to put in the effort once you are married.