AITA for walking out of my best friends wedding ?

I am 22(M) and my best friend(23) just got married. I was the maid of honor I mean best man. His wife is a vegan and made as request that no one eats any animal products at the wedding. I thought no hate, it is her choice. <br><br>On the day of the wedding, I was walking around getting everything organized and helping out and I heard a child (7 y.o?) crying because of the food, she’s allergic to nuts. The caterer was only serving vegan food as as per the request, which made my shit list the monoment they told me they didn’t even have an option for non-vegans. The little girl was now crying and started to have a panic attack. I was so fucking pissed off.<br><br>I went to the bride and told her she has to make sure that there is food for the little girl. The bride said she is sick of non-vegans calling vegan food “quarantee” and that we are “bullshit” . I lost my shit and told her this is not okay I mean she is 7 and has an allergy, we are not vegan and she doesn’t have to. The bride said we are disgusting I could hear the little girl crying and having an attack. I said fuck it and went to the nearest restaurant and asked them for chicken nuggets. The bride tried to stop me but the groom said let him go, I came back and gave the food to the little girl and she stopped crying. <br><br>The bride was furious and said I disrespected her and called me a fuckhead, I called her one back and she started crying. The groom said I should have talked to him and not done it behind her back, I said I did but you didn’t do anything and instead this piece of shit called me an asshole. <br><br>The wedding is now cancelled and people are talking about me and my hate for vegans. I don’t hate vegans just this dumbshit. AITA for walking out and getting food, the bride and groom are my best friends.