Did I Overreact in My Breakup? Why Can't I Stop Thinking About Him? (Me 23F)and (him 24M)

So, my ex and I broke up about a year ago. Throughout 2024, I’ve been living my life—going out, traveling, and enjoying myself—but he still lingers in my mind. I haven’t stalked him on social media; he just seems stuck in my head.

The reason we broke up was due to our long-distance relationship. I went to visit him to celebrate New Year’s, and while that day wasn’t perfect, it wasn’t what ultimately led to our breakup. We went to a Haitian church (we're both Haitian), and I was wearing a dress that some lady thought was too short. She pulled me aside as we were entering the church and told me I had to sit in the back because of it. I didn’t really care where I sat, but I decided to go along with it. After a while, she came back to talk to me about my dress again, and I felt uncomfortable, so I chose to walk out.

I turned to my ex and asked him for the car keys, saying I’d wait for him in the car. Mind you, I was in an unfamiliar place, in a freezing car, and hours went by without him coming to check on me—not even a text. When he finally came back, I told him I was upset that he left me in the cold, and his response was, “You could’ve turned on the heat and worn a longer dress.” I was furious and packed my things to leave.

So, did I overreact? And why can’t I stop thinking about him? We haven’t talked since—just a brief conversation where I asked for an apology, but he said he didn’t owe me one. I really want to move on, but it’s hard to get him out of my head. Any advice?