Trust is learned from past interactions with another. Trust is earned as the parties self-disclose personal information and learn that they will not be hurt by making themselves vulnerable to each other. Whenever trust is broken, the relationship suffers. The damage may be temporary or permanent, depending on the nature of the relationship. Without trust, you lack the credibility and safety for open communication, creativity, problem solving, or mutual learning.
People have three dominant interpersonal relationship needs.
The need for inclusion, control, and affection. Each of these three needs has two dimensions to them. The expressed desire to give or impose the need on others, and the wanted desire to receive the need from others. The degree of need compatibility between two or more people can make the difference between a happy and productive relationship and a dissatisfied and ineffective one. Please take the time to read this very important link.