Eldest son is nearly 18 and does not choose to spend time with us and his 4 siblings ever. Has a gf who lives an hour away and would rather travel and play happy families with her brother, mum and dad. Even visits her nan with her. Works hard and has 1 day off over Christmas now college has broken up and that 1 day off he expected to go and spend with her family. I'm so upset he doesn't see a problem with it. They even invited him for Christmas day and he didn't understand why I was annoyed. 9 month relationship, we've never met gf or her family. I'm hurt. He just sees me as wanting to upset him and thinks I don't care about his feelings. I have to consider everyone's feelings as well as my own and Christmas is so important to us all as a family. Thoughts please?