Immaturity at its finest

So I have been talking with this girl for a solid two months and last week she was being short with me so I asked what's up wih that. I then got the reply that she wasn't interested in having a relationship at all, but she still likes me. She wants to take a break from our "relationship." when I approach her she won't make eye contact or even talk to me when I try to. With that being said talked she talked to me saying she needed to talk to me after school so I went to her locker like I usually did in he past and she completely ignored me and said for me to talk to one of her friends to tell me what she wanted to say.... Immature, I really want to know why she is playing head games with me. Before this event even happened a couple weeks ago she had said I wasn't giving her enough attention so I slightly gave her some more and apparently I was being clingy, ugh. Everything was fine until I had to say something was bothering me and then apparently Sharon my feelings with the girl I like changed our relationship. Hopefully everything turns out well though I really like this girl and it's worth the fight if she is willing to be more mature.