Sorry for my bad English

Im finishing my highschool this year, and theres one girl i really like, not in my class but we know each other pretty well.

Few years ago,2012, we went on trip with school so Im 100 percent sure she had a crush on me, danced in a club intimate touches hugs laying in bed, but at the time i had gf, and even i wanted to break up with my gf then to hook up with her, i didnt. So we came back from the trip and we went out to cinema we had a nice time like we r in relationship, holded hands laughed... But we never hooked up. Our relationship got cold at the time... and... After a month she got a bf.

And this year i mean last year,2013, (still cant get used to 2014) we went on a school trip too, but this time it wasnt the same, i get it. She has bf, i know. But even she has a bf we stayed whole night talking about some stupid things listening to music, we lay down on the same bed separeted and in the morning we woke up cudduling,beautiful moments.

Also im preety sure im not friend zoned cause i always tell her some stuff like , hows my haircut, and im like bold, not really bold but i have really short hair... and she says its ok, i like it, and i reply, i know its not beautiful but i did this cause i noticed that u like ugly boys And she starts to laugh and punches me...

Im not sure what to think about this girl anymore im crazy about her! Im not sure she knows this, she knows that i like her in one point, but not like this! Im not like some stalker i left her huge space we even barely talk on hallways just say hi-hi... I left her space so she doesnt get bored by me...

Also her best friend is my good friend too... So im not sure should i ask her for an opinion, but if i ask her, she will tell that to my crush, and i will look like a pussy, like a guy who doesnt have balls to tell her his feelings.

Should I tell her my feelings by myself? I waited long time, she still didnt break up with that guy... And she s preety cool girl shes not a whore or something like that, always happy, at least she pretends to... even when shes sad.. On last school trip she called me her boyfriends name, im not sure is that good or bad, do i remind her about him or what... Last night on a school trip when i wanted to tell her about my feelings i told her bestfriend to leave us alone few minutes, and she smilled to me in a way go for it i think, but the girl i have crush on, she just said i need to go , i must go, sorry sorry, if she was a little faster she would be running to elevator, like shes scared of what shes going to her. I really dont know...

And i bet i would do anything for her if its urgent not on a pathetic way do a homework or anything like that,i mean if she has a problem and need someone to talk to in a middle of a night i would talk to her, but she doesnt count on me, im not even sure how she looks at me, am i friend, potentional bf, brother or wtf?
Also she sometimes makes funny faces when she walks next to me, atleast she used to, now she just gives a honest smile and hi, also she used to punch me on hallways if i negg her...

Thanks again, Its big dilema here! Cheers!

To someone of you it may sound pathetic, but its not to me... i got periods when i cant stop thinking about her...
Sorry for my bad English again!