Ok so I'm a first year Uni student. I met this girl who is currently driving me crazy. We got to the point where we knew each other very well, we made out alot, we slept together a few times (no sex

) but it was clear that there was mutual attraction. This is where my frustrations begin. Whenever it became clear that things were getting good between us, she would always put on the brakes hardcore and say that she didn't want a relationship because she wasn't over her ex (whom she broke up with ~ 2 months ago but apparently was really into, he took her vcard etc).
Now normally I would take this as a veiled and polite way to say I'm not into you or whatever, so then I said ok well lets just be friends then (reverse ljbf i guess). she wouldn't have any of that and said no I just want to take it slow I really like you bla bla bla. Anyways, this little cycle repeated itself twice, and all the while I found myself becoming more and more into her (Iguess you want what you cant have) anyways, the most recent time she still didn't want to ljbf, just wanted to take it slow or whatever and I said I've had enough, if you really want anything to happen prove it and make some effort. She said ok but then didn't call or do anything for a week almost (legitimately she did have midterms but still radio silence is a bit much)
anyways, I am losing it. I really fell hard for this girl she's awesome. we spoke since the silence and it was as if it were over she just said it was bad timing or some bs. It really sucks cuz i see her 3x per week in class.
I feel like I've done everything I can but its such a waste to just walk away after so much time and I told her that, I said I wasn't giving up on her, let me make you feel happiness bla bla bla it felt like the end of 'Hitch'. Anyways I'm really distraught because I let myself believe that something could come of this and now theres nothing. she even made up some excuse not to hang out tonight (I know the excuse was fake b/c I know her schedule/habits) so now I feel very AFC.
HOW DO I MAKE HER LIKE ME AGAIN?!? I can't stop thinking about this girl