Girl Help? Haha plzzzzzzzzzz?

So me and this girl hav been really close friends for 2 years. We never went out, but towards the end of this year, we pretended we were married and stuff. Life was good, and then during the summer, we hung out at the park together, hugged and stuff, and it was all good. And then i told her i liked her, and it was kind of weird, but she was like we're still best friends and we still hung out. About a week later, she started like ignoring me, and i finally got to hang out at a park with her, and most of the time she was kinda being mean in a playful way, like teasing me and stuff. I didnt really get that caz ive always been super nice to her and she was always more talk talk talk, think later, but we've always been close and now she's like making fun of me? Im not tryin to get her to like me, but i just want to stay best friends. Any suggestions at all plzzzz. We're 14.