I like her again damn it?

So I had it really bad for this girl but she shot me down when I asked her out, then I got over her and she started trying to be a party girl anf she was pissing me off, now shes back to her odd self and Im starting to want her again. I see her most nights at the hookah lounge I go to and we usually talk a lot, and we do txt occasionally. When I asked her our she said no because we're friends, I dont know what to do cause I half way gave up on anything more with her