Before I start this post properly, let me say that is have never stopped DS from seeing his dad. It is his dad who often doesn't turn up for collections/doesn't arrange them in the first place and most recently, hasn't spoken to DS in 3 months!
Anyway, I cam back from work to find DS (11) Skyping my ex. My son had made the contact btw. I listened in and could hear my ex saying "make sure you find out from mum when you can come down" etc.
It turns out now that my son does want to go. The trouble is, it's a cycle. He goes once, has a terrible time and his behaviour drops at home and school. His dad doesn't contact him for ages and DS says he doesn't want to see him again. This pattern seems to repeat about every three months.
Just wish my ex would crawl under a rock and stay there!