My ex is reusing to collect our kids from boarding school (100 miles) and will only collect them from me 17 miles away. This is because I asked him pay the correct amount of maintenance. He says he pays maintenance for me to do all the driving. I have told him that I will pick up if he drops back off (and I’ll deduct his costs from CM). This way the kids get a bit of stability in that they go to one of us for half the holidays and then to the other. At the moment, they come to me for a weekend. My ex for 5 days and then back to me for a weekend and I take them back. It’s not good for the kids and it’s not good for me. I’m at the point of saying if I get them, they stay with me. If he wants to see them, he can do half the travel. For context, we are both in the Armed Forces hence need for boarding school. We always used to do shared travel but he was close to school and has now moved. What should I do?