Am I tweaking or delulu or fr

Was wondering if my crush (17F) likes me or not, I may be tweaking our rn:

1. Willingly shared a (booked) taxi ride with me to a seminar, just the two of us + after the seminar was willing to go to more related seminars, just the two of us
2. One time during a school event her tie was poking out from under her collar, I told her and even tho she could have easily done it herself without needing to look in a mirror (the school ties are easy to adjust) she asked me if I could help her out
3. Sends heart emojis a lot (tho this is prob normal for a lot of girls)
4. We were in the dark auditorium trying to figure out how to turn the middle lights off and she went to play the grand piano there (beautifully) and after a bit started singing (beautifully) so ig she was comfortable with me around
5. My senior (18M) and I were actually joke-competing to see who could get her as a gf first, and from the way we interacted with each other she could most likely tell that we were working together/against each other (like giving updates) but the FIRST thing he messaged her giving her a compliment, her immediate response was "Thank you for the compliement!(smiley emoji)" immediately followed by "fyi I'm not interested in dating rn" dang cold (first time I've known her do something like that), but so far I've been giving casual compliments and she hasn't rejected me yet