My ex has booked and paid for a party to a trampoline park for next weekend. She's invited friends from her school. He originally said I could go, then because he was angry at me for something he then said I can't go and I won't Be even seeing our daughter on her bday because he will have her all day. He's purely doing it out of spite as we both got to see our other daughter in December on her bday. We usually both spend the day with her and be civil just for the child so we both get to do things with her in her bday but rbis time he's stopping Me now even though my daughter wants me there. Should I just turn up against his wishes ?