Are you a communicator or lecturer?

Communication is a two way process involving an exchange of ideas. If it's only your way, you'll frustrate the other person and possibly yourself if you sense the other persons lack of involvement as disinterest rather than an ability to get a word in.
Simple Rules for Good Communication
1-Be prepared. Organize your thoughts in your mind before sharing.
2-Good communication is collaborative, not competitive.
It's a two way process involving an exchange of ideas. Poor communicators are often lecturers or teachers by nature. They want to tell you what they know and often don't realize that you already know what you are saying to them.
As a general rule they don't listen well and interrupt often.
Be diplomatic, tell them how you feel. See if they can learn to make it a two way street.