Attire for a violin recital

I just had a really bad day, getting laughed at in front of a large audience, and I am not quite aware if I am in the wrong for the cause. Would really appreciate it if anyone could provide me with some knowledge.

I have a friend from college who is so passionate about music, and plays multiple musical instruments including violin, which he has been playing for 10 years now. He usually is the center of attention within our friend group, and I am often the forgotten one of all, however, I have always been there for him (or anyone else at all) to listen when he needs someone, and he has always trusted me with his problems. I was starting to be happy at the fact that he could trust me, out of everyone else even though we aren’t close at all in other regards.

Well over a year ago, the guy informed all of us in the friend group about his violin concert organized by a class he goes to, and would like for all of us to listen to him play if possible. Of course, I show up to support his first big audience, but no one else showed up. I sat through the whole event, and even videod his performance so I could share it on the group chat for the people that couldn’t make it.

It was an amazing performance, and I hadn’t thought anything of it..till today.

A year later, the same guy decided to participate in a standup comedy event at our college, and of course, everyone shows up for his performance. Once again, I was in the front row videoing his performance since he wanted to show it to his mother, that could not come today.

That’s when he began telling the story about how he performed at a violin concert and something incredibly funny happened then. He started off with how he had emailed a teacher from his high school, whom he had looked up to, but didn’t expect her to show up on the day but before the concert began, he bumped into her at the entrance and was full of delight that she had come. That they were having such a lovely conversation catching up, until I showed up.

His words were, “The doors of the elevator opened and there she was, in a bright yellow top that’s tight fitted, a black skinny pants and really huge earrings.” He added that his former teacher looked at me in surprise and asked him who I was, since I looked at him and waved at him while they were having a conversation. Apparently, it was the clothes that I was wearing, that was the problem.. I hadn’t thought I dressed casually, as I knew the event was taking place at a hotel. He said “My former teacher and I were shocked, looking at her attire. I mean, she wore skin tight everything! On top of that, a bright yellow top! Hahah cmon I didn’t expect that.” He specifically pointed at me, when telling this story so everyone certainly knew who it was about. Hearing everyone laugh at me really saddened me, and made me insecure about how I dress. I did not know there were certain attire that should be followed at a violin concert (a formal dress for women). Well it did not end there, he added that I looked like “an old women that tries way too hard to look young.” Mind you, I’m only 20. He said that he was embarrassed having to introduce someone like me, to his former teacher in that sort of manner.

Everyone laughed, but I couldn’t. I was trying my hardest to hold back my tears. The guy had not mentioned anything about what I wore that day, till he got on stage today. I could have apologized for embarrassing him by what I wore. I had no idea anything was wrong. I now am the laughing stock of the class and I am really embarrassed about what I wear..

The picture below is what I wore that day:

It isn’t as bright yellow as the guy exaggerated it to be, and certainly isn’t skin tight.