Is it possible for a girl to reject a guy and later change her mind?

Anonymous
A few months ago I met this girl and we started talking and got along great. I asked her out and she said no, saying she wasn't attracted to me. After that we kinda stopped talking and started ignoring each other (it wasn't my choice, she started acting funny so I left her alone)

For a long time, there was this animosity between us, every time we saw each other or HAD to talk, we kinda gave each other attitude. We had a class together, so we had to interact a bit more but just the same, it was like we didn't like each other at all.

Recently though, we kinda talked one day and it was like we were in the same wavelenght, it was fun but I thought it would be a one time thing. To my surprise, we started talking ad joking every time we saw each other and shared a lot of laughs and she would actually laugh and giggle at my jokes, while before she would just act annoyed. Now she goes out of her way to tease me and call me names to get my attention, she teases me nonstop. Even when I try to just mind my business, she would come up to me and start "crap" and have this big grin on her face and a giggly demeanor.

I have seen her around her friends, male and female and she does not act this "giddy" with them. People have started teasing us and how much we talk and "play argue" and the chemistry we have (obviously everybody sees it). So my question is, what happened her? I don't want to make any moves after I did the last time but is it possible for girls to change their minds after saying they weren't attracted to you?
Is it possible for a girl to reject a guy and later change her mind?
7 Opinion