I need help

So earlier this year in February, this popular guy whom I used to be friends with asked me out. I said no because I had a habit of telling everyone no about everything. Like if my mom told me to do something, I would say no but I would still get up and do it. Well, I had to go to my class and he went to his and about 10 minutes into class I had finally realized what happened. So it was only natural that I'd develop a crush on him. And so a month later I had found out it was all a prank. I wanted to die because everyone in my grade was in on the prank, even someone who I thought was my friend. But even though I knew it was a prank, I still had feelings for him. Now it's already been several months and I figured my feelings for him would be gone. But just today I had to do a Zoom for my Living Environment teacher and said kid had his camera on and I saw him. I then realized that I still somehow have feelings. I don't know why or even how I can still like him but I do and I want to get rid of my feelings but I can't.

TL;DR - This guy asked me out several months ago but I found out it was a prank. And somehow I still have feelings for him.