Hi there! I need your help here!
These days I met a girl, friend of a girl friend of mine. We met in a college party (bbq actually, on a saturday afternoon), I started talking to my friend and she was with this girl, Bia. We talked for hours and hours, the other girls - her friends - left us alone to talk but, at the end, I didn't kissed her and she asked for my fb.

The next week we talked through Facebook some time and I got her phone. Since then, we talked through messages almost every day all day, sometimes she started and sometimes i started. She always demostrated interest (IOI) and, the next friday, we kissed in a party. She was very flaky cuz she kept saying that " your are not the kind of guy to kiss in a party or club and forget the next day.You are very better than that, you are a guy to kiss in a date and i'm sure you will call me tomorroy cuz you are different and bla bla bla" At the end she kissed my.

Since then, we kept chatting on whats app and, one week later, we hang out in a data. Everything went very fine, we laughed, kissed, hugged and so on. The next day i called her and do some silly talk (about some facts she told me in the date) and i said i liked seeing her and we should do that again. I guess, by her reaction, she was interested and liker me (her eyes were so shinny and she was so happy...)

The problem begun the next week. Sometimes I texted her and she always responded my SMS, but i couldn't see any IOI, i sent some IOI, but she didnt demonstrated as before any IOI (before we hang out, every time i texted IOI to her, she responded with smiles or sayin "you are cute!" or smth like that).
I asked her out last week and she said "If I can finish my paperwork for college I will, else I will not leave my home". Then I stoped texting her since then.

After that weekend, I met her in my college by luck (nothing scheduled), she saw me and came talk to me, leaving her friends. We chatted for some looong time, I used lot of negs and kino on her, she responded very well, mainly when I hugged her and kissed on her cheeks. After 15 minutes chatting, 2 friends of her came and started talking to her (they said "We just came to say hi, we will be very quick, I promise!"). So they started talking and I was kinda of "waiting". I stand there for only 2 minutes and then I tried to leave the set. I said "Well, I have to go know, c you soon!" but she hold me (verbaly) and left all her friends and started again talking to me and we chatted for some time again , she said she was very nervous due work, collage and her PMT, until other friends of her appears. right the way they arrived, she introduced me to all friends and we talked, laughed, etc, etc.. til one of her friends say "Hey Bia, what happened to you? Five minutes ago you were to angry and depressive, now you are so happy and energetic!" We kept chatting and one of her friends suggested going to a bar. I declined cuz I wasnt in the mood of drinking that moment and had some stuff to do too. She seemed a little disappointed and sad, she said "you are so oooold!!" and i imediatly negged her saying "bah... i bet you cant handle me for more than 5 minutes...".. he laughed and I went home.

2 days after i text her saying "you have just popped up into my mind, but i dont know why.... may cuz my brother was paying resident evil.... " (she is a player and fan of resident evil).. we did some silly talk (no more than 5 messages) and nothing more since than (kinda of no contact for 5 days).

Today she came talk to me in fb asking if i knew some info she needed but i didn't invested so much in talk (cuz im kinda disappointed with her).

I like her, she makes me feel good! What went wrong here?
Thanks!!