My (31F) friend (32F) is getting married next week with her long term boyfriend (36M) who is also my friend. I'm one of the bridesmaids and I've helped in everything I can with the whole process. Nevertheless, it's being a little chaotic the planning and they're always adding or changing the activities they want us to do at the ceremony and reception. One of the latest is that there will be a traditional part of the reception that lasts an hour and it's a mix of old music to dance and chill and whatever... They want the guest, specially the bridesmaids and groomsmen to wear a football (soccer) jersey to that part of the party. At the beginning I was cool with it since I'm a big football fan a have a few jerseys myself but, a few weeks ago in a friends gathering, the groom and the bride said that there were several teams banned, including mine. I said that I could wear the national team instead and nope... That's banned too unless is an specific country. She went as far as saying "it's our wedding, when you're getting married you can do whatever you want" as a "joke"... so I decided that I won't be wearing any, since it's supposed to be "optional". A few days ago, the bride ask me what jersey would I bring and if I already have one of the approved ones and I said no. I won't be buying a football jersey just to wear for an hour in a party when I'm not even from that team and I'm already spending a lot of money in this wedding. She's mad. Like... it wasn't optional. She's convinced I'm not doing it only because my team is banned and I'm mad about it. My friends are divided... Some say it's ok because they said it was optional, others think I should cave and buy the jersey to please her. I think the whole situation is so ridiculous that I can't believe it, even when I know how some people get with weddings... But I can't help to wonder AITA?