Financial talk

I have a story with a girl. I met someone around nov 2006, now during that time we kicked off very well. We would text each other every night, and we would see each other every sat. During New years of 2k6, i asked her if 2k7 could be our year, she said it can. So she gave me a positive reply. Now on feb 2007, i was going to visit her in school. i met her friends and managed to have a good image towards them, but that day in feb when i went to visit her, her and her friends texted me to not come. Her friends posed to be her tring to help her dump me. I got pissed and i said stuff like, i spent money for you and all this.. wheres the respect. etc.. she gets pissed and refuses to talk to me even though i try to appologies and reconcile, she wouldn't reply. 3 months after, me and her managed to talk again, and it was an on and off thing. she would ive me her number, then all of a sudden she becomes unavailable. Anyway, that was upto oct 2007. continued... continued. On oct 2007, we managed to reconcile, we got it again. We went on, and we would text every night just like before. But later on dec, she texts me that she can no longer text me as much because she has a bf. I got pissed but i didn't show anger or say anything negative. Now on march this year, me and her are back at it. She broke up with her BF, i never asked why, and we are still texting and dating. the thing is, she still won't be my gf. last week, she gave me a kiss, i also asked her if i had a chance and she asked if i was serious with her, she then says i hope so after i admitted that i was. But she says we can't be in a relationship yet because her board (Nursing) exam is this june. Yesterday, she seemed distant again. she seemed to push my hand away when i would my contact with her hands. i'm assuming that after june she will ditch me again, but we are still talking/texting as if their is nothing wrong. whats going on here?