Just over a year ago my ex decided our 19 year relationship was over. Our 17 year old son lives with his Dad and our 11 year old daughter lives with me. My dilemma is my ex doesn’t communicate with me. He is using our 17 year old to organise a visit with our 11 year old over the Christmas holidays and I’m not okay with it. I’m unsure how to approach this with my ex as still get very emotional when dealing with him.