Does that mean something, or am i just delusional?

Lately, I’ve (M18) been seeing a girl (F18) I’ve known since high school at the vocational school I’m attending. We weren’t very close back then, but she was friends with my former high school crush. I’m not sure why, but I used to think she was interested in me because I remember her copying my social media bio and following my updates, even though we rarely spoke in person.

Since we're at the same school now, I decided to reach out and talk to her. I realized that she’s changed a lot, and we ended up having a great conversation where we discovered some similar interests. I mentioned that I’m going to a convention with a friend—who was also in her class in high school—and although she wasn't interested at first, she later asked if she could join us. It was pretty unexpected. We even hugged after talking in the cafeteria, though it might not mean anything. We’ve been chatting each other almost every day now, and following each other in some plattforms, but I’m still not entirely sure if we truly have enough in common.