AITA for walking out of my sister's wedding as an organist because she told me last minute that she didn't have any vegan options?

YTA. YTA. YTA. YTA. YTA. YTA. You absolutely ruined your sister’s wedding over...wait for it... Mayonnaise? M.A.Y.O.N.N.A.I.S.E.? Wow. No music at her wedding...over mayo. You clearly have no idea how stressful and complicated planning a wedding can be up to the very moments before the ceremonies begin. You ruined your sister’s wedding over the egg in mayo. I’m sure there is more to the story but this is so far beyond vile and evil I can’t get my head around it. You didn’t ditch a lunch date or skip a coffee date because of cream or zero vegan options. You ruined her wedding. But it’s all good because you weren’t very close anyway? I mean, goddamn.

/r/AmItheAsshole Thread