Ds is supposed to see his dad once a week alternating days at the weekend. This is a court agreement signed by both solicitors. It states the amount of hours and where ds is collected and returned home. That's all fine.
His dad then gets a new car, has another child and says he has to reduce maintenance but will take him more to make up for it. Then he tells me he will be "on call" once a month so can't take Ds then but will take him twice the next weekend. Nothing formally agreed about the change. So it seems to turn out that since christmas Ds' dad is only taking him every second weekend for a couple of hours because apparently he's "on call".
Ds has started telling me he doesn't want to go when I ask if he wants to go play with daddy, his behaviour is so bad for a few days when he comes home, he gets so upset going to bed and is so clingy. He is basically going 2 weeks without seeing him and then getting upset when I tell him he's going to see him and it breaks my heart but I try to act positive until he leaves. His dad gets thick and starts saying hes going to "kick up a fuss" if he doesn't get his own way which was 2 extra hours but ds had a very very busy week and hadn't seen him for 2 weeks.
So my question is, should I 100% stick to the agreement and not offer or agree to any extra days or should I return to court and have a judge decide what's best for DS? I just want DS to have a routine with when he goes so he can settle and stop getting upset. The worst part is that he looks fine when he walks out the door but he's so aggressive and moody when he comes home