Dss lives with his mum a 4 hour round trip away atvthe moment we have him every other weekend. his mum has accepted a party invite for sunday afternoon which means that rather than leaving ours at 5pm to take him back we will have to leave at 12.30 when we havent seen him for 2 weeks. is it unreasonable for us to say that dss wont be able to attend birthday parties on access weekends unless theyre actual friends? My understanding is that this party is a "whole class" affair. Dss is 5.