Hello Dear As a professional to help you will need in depth knowledge and intricacies about your marriage. Till that time try talking to him about it, try opening your heart to him that he should avoid phone calls in front of the child, spend some time with him/her. Give your child most of your time, try and not show him that something is not going right between you both. I also want to understand what you are thinking and what is that you want. So you can consult a counselor face to face who can be involved with you. You can start writing your thoughts down for better understanding your own feelings.

How do you say it's OK,  when it is causing you so many years problems in your life. It has the taken away the attention  which you and your kid requires,.  It has created  a drift between you both  etc etc. I think,  you both  need to meet a Marriage Counselor.