I (20F) have been dating my boyfriend (21M) for about a year. I thought things were going well but one thing that he does really bugs me - he is CONSTANTLY wearing this orange varsity jacket. I think it’s merchandise of some kind, it has a lot of branding on it. I don’t have any issues with the rest of his clothes, but I’ve only ever seen him wear that specific jacket. He wears it on any/all occasions. I’ve mentioned this to him before (I offered to get him a new jacket for his birthday) but he doesn’t see the need for a new one. My breaking point was last week, we were supposed to go on a date to a really nice restaurant. I spent a long time getting ready and honestly I felt really good about how I looked, which isn’t very regular for me tbh. When we met up, he was wearing the jacket as always and it really upset me. It’s because I’ve mentioned that I don’t like him constantly wearing it before, and it felt like he just ignored me and wasn’t putting in the same amount of effort I was. He didn’t have an explanation, and it seemed like he genuinely didn’t understand what the issue was. He told me I was ruining “our” night and that it wasn’t a big deal, and at that point I just walked away. My friend had driven me there and luckily she hadn’t left yet, so I had her drive me home. He texted and called me a lot but he just kept asking me to explain myself, which pissed me off even more and I’ve stopped replying to him. At this point I’m starting to feel like I’m the crazy one. Am I overreacting here?

EDIT: I found the jacket he wears. I didn't know what it was, which is probably my fault. But I feel like this is clearly innappropriate for a date.
https://preorder.gamegrumps.com/