Im not sure how to describe this and apologies the essay

So a girl invited me to a music show of hers which will be happening this upcoming Saturday, but this same girl pretty much friend zone me back in September. (She was also my first love) She knew how much I liked her and I had even told her, and she wanted to stay friends and I think we are good friends. But I never really did move on from it, I haven't tried meeting a new person since. I wanted to make her a gift a necklace or something, along with flowers and her favorite candy to give once her show was over,, but as for the gift should I have just her name on it or both our names?? Also, im not really planning on "changing her mind" even though I'd like it I just wanted her to remember I cared. After Saturday im hoping she would say thanks and stuff but I guess reassure we arent getting together. Because I think ill be ready to move on after this