This is my first post to this subreddit so be nice.

About 3 weeks ago I met a girl on an outing on a Sunday through mutual friends. We hit it off and the day after we met, we made plans to meet that following Friday. I was going to teach her how to skateboard (thought it would be good for kino) and take pictures (we're both avid photographers). The night before I texted her; "wear something cute tomorrow" and to that she responds "oh yeah I can't go". I said "oh okay, when are you free again?" She replies with "idk, idk how I feel rn". I left her on read and passed. Three weeks pass and this last Thursday she texted me out of the blue and showed more interest than she had initially. Triple texting, texting back very fast and eager to meet up on Sunday. This has never happened before and I'm very confused and awestruck by it. Should I proceed with caution? Why did it go down like this?