I've been divorced 6 years and myself and ex h have 50/50 shared care of our son age 12. Court ordered - ex wanted him full time, but court said 50/50. Anyway ... ex h bought son mobile phone last year. Lots of tech at ex's house, son glued to computer games/phones a lot of the time. So when he is with me, quite often I take phone off him and we do other things. Ex h (who is very overbearing) likes him to carry phone at all times, he says, in case he needs to contact him. Today we went swimming and I said leave the phone at home, which he did. Ex h then worked out son did not have phone on him, and says as "a punishment" to me, he is now going to keep son at his house for an extra night next week. I just don't know how to react to this. It feels bullying, domineering, horrible. Son is not really bothered about any of it - but it feels so wrong to me. What would you do? And thanks for reading.