DS 8 took up a new hobby this year, there will be a performance for Christmas with a party afterwards, it’s the type of scenario where you need to book tickets. I will be there to support him with my other child and my mum but I’ve not mentioned it to exH. We separated in the summer, I pay for DS to do his hobby and do all the picking up/dropping off do I need to let exH know in case he wants to go or can I just leave it? I don’t really want him there but DS might like it and I don’t want to be accused of alienating him. I’d appreciate advice on what mumsnetters would do in this situation.