DS 15 has called me after school and asked me to pick him up as he doesn’t want to go back to ExH’s (it’s one of his days to have the kids). All DC were excited to go to their dads after school today and he collected DD and youngest DS from primary school. I have just brought DS home and texted his dad to say I have picked him up and if he knows why DS didn’t want to go with him. He said DS called him after school and said not to pick him up but wouldn’t say why. I have also asked DS but he just shrugged and didn’t offer an explanation. Should I be concerned or is this just part of being a teenager?