AITA for dressing too nice for a wedding?

Hello! Longtime lurker, first time poster here. I (25F) went to a friend’s wedding a few months ago. The friends are Matt (25M), and Susan (25F). We’re all part of a much larger friend group that gets along pretty great. To preface, I have actually never attended a wedding before in my life, and I don’t tend to dress up or put on makeup. Nothing against it, it’s just expensive and time consuming and I work 16-hour days in a uniform. I was really excited when I got the invite, saved up, and went to a shop I know carries my size (I’m fairly tall). The clerk was amazing and so helpful. He chose a selection of dresses that would be wedding appropriate that weren’t close to what the bridal party would be wearing and we had a lot of fun trying things on and he hyping me up. One of the options I just fell in love with. It was a beautiful dark green silk “bias-cut” dress (think Kiera Knightley in Atonement, without the sash and less of a flowing skirt). We matched it with heels and I’d never felt prettier. The dress was on sale too, so that was a plus! Wedding day comes and it’s lovely. I’m so happy for my friends. Susan ignores me, which is weird, but she’s busy preparing and then the wedding is in full swing and the reception is busy so I don’t think much of it. Everything goes off without a hitch and they drive off to their honeymoon. I suppose it’s relevant, but I received several compliments on my outfit during the event. I didn’t think it caused a scene, and it wasn’t anything particularly effusive or over the top. I was doing the same to others so I didn’t think it stood out. Everything concludes, we all have a nice time. No one says anything until tonight. We all got together for a “Welcome Back!” dinner for Matt and Susan. During the dinner Susan kept making snipes at me about what I wore, just incredibly passive aggressive. It was very clear she thought I overdressed. I didn’t say anything at the time because I felt terrible. None of my friends corrected or stopped her either. But looking back on it I feel… wronged? She didn’t give me the benefit of the doubt and I don’t feel like my dress was over-the-top. I do think I likely look very different from how I normally dress and present myself, so that might be part of it?

I’m trying not to go over the word limit but am very open to questions and elaborations if needed.

So Reddit, AITA?

TLDR: wore a nice dress to a wedding, the bride is angry ever since. AITA?

Alright, my update was way too long and I honestly don’t know if I can shorten it and it still give all the details - so I’m going to be posting it on my own profile.