Before I answer them let me first define what is a relationship. It is a particular type of connection and involvement existing between people. And the way you establish connection is through communication. Communication is the exchange of thoughts, ideas, and messages either verbally, visually, in writing, or through signals and behavior. The purpose of communicating is to express yourself in a way that is clearly understood by your partner.
Communicating is the vehicle through which two people connect with each other.
Without it, you don't have a relationship, and without it being open, honest and authentic, you can't have a healthy relationship. Decision-making is using your power to determine what choices you want to make. Only you are and can be responsible and accountable for decisions you make. Everything in life is a choice and how you operate in any relationship is always a choice. Therefore, the decisions you make always impact on the kind of relationship you have.