Does she like me? please help!?

[Heisotsu]

Another "I like a girl does she like me back" post. But here goes -
I have two classes with her and i am in the period before her period for a class (dna science). We started talking at the beginning of the school year when we found out we were both in dna because its a hard class and she always wanted to know what we did. Then in humanities (combined history and english) we bychance were in a lot of group projects so I started facebook chatting to do the projects.
After a while we became really close friends over facebook. When my parents took away my fb over my crappy grades (im 17 but asian parents dont care about age), I emailed her and apologized that we had to talk over email "because i dont have your number" i said. She gave me her number and we started texting.
I found out that we had a lot in common. We are both biology geeks (we go to a science and tech school) and we both love kdramas and ninjas and violin and naturally i fell in love with her.

Anyways, heres why i dont know if she likes me back.
When we text, she either blows up my phone with messages or she takes many hours to send a reply. She says its because of hw and it makes sense but still. Also, she tells me to go away sometimes (also on the pretext of trying to study)
She never flirts with me, but she receives my flirting well.
She received my best friends flirting well too until I told him in private to knock it off.
Once I said something about her wearing jeans (she usually wears tights) she told me to shut up (not meanly! just kind of irritated). Apparently she was on her period and i think she was embarassed i noticed.
Once when we were studying together she ditched. She apologized profusely and told me she forgot. The next day she told me she had to study for a physics test (which there was) so we didnt study together either, and Ive never made a study date with her ever again.
One of my idiot friends who doesnt know her well chatted her "hi" and never replied. She knows hes my friend and that probably creeped her out a little.

But on the other hand:
We talk. A lot.
We have tons of inside jokes.
We always sit together during class and I flirt with her.
Once she got upset that I told her she looked kinda of like someone else. It was clear that it wasnt an insult but she was offended. My friend (she knows everything about girls) told me thats a sign shes into me because that means she only wants me thinking about her
I told her she looked cute and that she was like an adorable schoolgirl, and she took it well
She tries not to be impressed with my dancing (ive been dancing hiphop and house for 4 years)
I am not sure, but I think she switched senior techlab so she could be with me (maybe)
She tells me everything, and I tell her everything. whenever I/she is absent we text each other to see if I/she is ok and we text each other the hw and anything we missed.

Help, I am really not sure if she likes me or not.

[Quinton]

Listen bro, I hate to break it to you but I think you're in the friend zone. It was debatable until I read the part," We tell each other everything". However if you really want to make sure if you're in the friend zone or not own up and ask her out on a date and see how it goes

[Lois]

I think she like you

[Audrey]

The best way to know if she likes you is to just ask, & if your too nervous have you one your bros come into a conversation like "you guys hve a thing for eachother I can tell" & see what she says. If she says no then maybe she just wants to be buds. But don't go over board, if she says no then let it go, she will think your crazy if you don't & will probably stop talking to you all together. So just ask, the answer will always be no if you don't take the chance