Is this a crush?

So I am grey romantic and I have only had one crush in my life. But there was this one boy in middle school who I started talking to because he liked the same shows as me and I never had anyone to talk to about shows. Him and I got talking, and everyone (my friends and his friends) was teasing us that we liked each other. I didn't know that I liked girls at the time (the jury is still up on whether I'm bi or gay, probably just gay though) but I did like hanging out with him because he was a cool guy. He asked me out, I just said sure, but I immediately regretted it and changed my mind the next day using the excuse that I wasn't allowed to date until high school (true btw) I did get flustered when he complimented me and asked me out and I felt flattered. But I get flustered and flattered easily when someone is nice to me. Do you think this was a crush? I think I was just tricking myself into thinking it was because he was the first boy I talked to in forever and I thought I was supposed to like guys at the time. I didn't know that I was an aro ace lesbian. I just wanted to talk about Rick and Morty with someone! I'd just like to say that I'm horrible with this stuff and the only reason I'm thinking about it is because I don't want to feel like a liar when I say that I've only ever had one crush.

TLDR: This guy asked me out in middle school and I accepted only to break it off the next day due to regrets and idk if that's a crush or not or if I just tricked myself into thinking it was a crush since I don't hang around guys too much